OK, I've looked at all your pics. I have not seen them before, so I assume they got screened by one of the other screeners. While I think you have some pretty good shots in there, I agree with them that a little more work is needed.
First, some general comments:
You have a LOT of pictures over the wing. Some of them, quite frankly, are a bit boring. If you have a bunch of out the window pictures, try to pick the best 2 or 3 or so. As a contributing photographer, I never load more than 20% of my pictures (I used to load almost everything). Pick and choose.
It looks like you are scanning prints on a flatbed scanner. What size are the prints? If they are smaller than 10x15 cm, you might have difficulty getting acceptable levels of detail. The prints themselves appear to have been significantly "corrected" by the printing lab - the colors are rather unnatural, although technically balanced. The scans themselves seem clean in terms of dirt and noise, So I think your scanner itself is OK.
I strongly recommend that you either change your lab, or, if you can talk with the technician, ask him/her to apply NO CORRECTIONS on your prints - just to print them as they are.
Taking pictures in poor weather is difficult! I would strongly recommend that you don't even bother with poor-weather shots until you have mastered easier sunny-weather photography. A huge percentage of our rejections are due to people trying to take pictures in weather where it simply was not worth it.
Finally, sharpen the hell out these pictures, most of them are very blury. You should sharpen them until just before lines become jagged, or white "ghost shadows" start apppearing around dark objects.
Also, you appear to be sending the pictures already compressed somewhat, at 100-110 KB roughly. I do see hints of compression here and there, and remember that A.net automaticall compresses it a little bit automatically. Full size pics like yours without any compression will run in the range of 400-500 KB. Trust me, the longer upload time is worth it, especially if you managed to get it nice and sharp with smooth colors.
Now, One by one:
OHLXB1.jpg: OK, it's a wing. Fine. But there are tons of wing shots on the database, and there is no unsual subject matter to attract attention. Honestly, I wouldn't bother with this one. It is also blury, with hints of grain and compression in the sky.
OHLXB10.jpg: Pretty grainy and blurry at the same time, and the colors are pretty awful, probably due to the "correction" at the lab. When a picture is both grainy AND blury, it's very difficult to save.
OHLXB11.jpg: Again, very blury and with unnatural colors. The dark forground makes it visually unappealing.
OHLXB12.jpg: Hey, a little sun! Taking a good picture were some things are in the sun and some are not is difficult. The Wing is washed out, and there is an area down the middle of the picture that looks like sunlight refracting off of the window, which we know Johan hates. Also pretty blury, but the colors are a little better.
OHLXB13.jpg: VERY blury! Composition-wise it is interesting, with the dark clouds overhead, but you get into that problem again with the dark forground and over-lit background.
OHLXB14.jpg: Still blury, but not as bad as the last one. My first reaction seeing this is "what's the point?" The very dark foreground shows virtually nothing. The sky is unattractive, with its weird colors and too much contrast.
OHLXB15.jpg: same comments as OHLXB14.jpg.
OHLXB16.jpg: Pity about the washed-out background sky. Also blury.
OHLXB17.jpg: That damned sky again. The color of the sky matches up with the washed-out roof of the plane, making the border between the two indistinguishable. Also quite blury. This is a picture where you should look carefully at the negative. Can you see the roofline? If so, your printing lab is definately at fault. One more reason to shoot in good weather - blue skies are actually darker than these overcast skies, and give you less problems like this.
OHLXB18.jpg: Very blury again. Composition-wise, it seems to be confused. Personally, I would have either backed up and shot more of the plane, or moved forward and taken a closeup of the landing gear. (but that's just me - not a reason to automatically reject.) Also unbalanced. You just off of the centerline, have the entire engine on one side and not on the other.
OHLXB19.jpg: 3 things wrong here. 1) It's still blury, 2) the camera is not horizontal, 3) the colors are off again.
OHLXB20.jpg: Very blury. Colors are a bit less corrected - not bad. I would increase the gamma a little bit. Finally, the tip of the nose has been cut off! I know it's a small point, but it really grabs your attention.
OHLXB21.jpg: Blury. Needs just a little but of gamma correction. Otherwise it's alright. First reaction would be to crop out the "empty" area on the right, but then again, it identifies the airport, so that's OK.
OHLXB22.jpg: Blury again. Personally, I would have zoomed in on the tail more. The tail is also backlit - you should have taken it from the other side. The sky looks terrible. And what the hell is that thing under the plane?
OHLXB23.jpg: You had an interesting idea here, it's a pity that circumstances (weather, position of the stairs) were not better. I kinda like that sun reflection. But it's still blury, and colors are off.
OHLXB3.jpg: Wingtip cut off, same issue as OHLXB20.jpg - it just glares at you. The mostly dark ground and overcast clouds do not hold very much interest. The clouds are brownish again. Blury.
OHLXB4.jpg: Blury. "What's the point?"
OHLXB5.jpg: The clouds again cover up much what could have been interesting landscape. As it is, the ground below is dark and uninviting. Colors are off, and blury.
OHLXB6.jpg: A bit more interesting - less clouds in the way. But very blury and off color.
OHLXB7.jpg: Very blury again. The overcast conditions are killing your print film's performance.
OHLXB8.jpg: Well, there is a subject of interest - that bridge down there. Again blury and off color.
OHLXB9.jpg: What could have been interesting is spoiled by that cloud right in the middle. Blury and off color.
In summary, I think you should try to rescue a couple of the tarmac shots. The others will be very difficult to get in.
Like I said, find a lab who will agree to apply no correction on your prints, especially color correction (exposure correction should not hurt you).
Practice using the sharpening and Unsharp mask tools.
Until you've learned to master these things, I'd recommend that you don't even bother taking pictures except in good, backlit sunny conditions. It's much easier. Once you've learned how to process those shots well, you can come back and try to get some more of this batch uploaded, but frankly I think by then you will find that it is more difficult than it is worth.
I hope this helps you.