For the Prowler shot I would suggest not uploading at 1600 wide unless quality is outstanding. As-is, it will probably be rejected. First step would be to process the image for a final output of 1200 or better yet, 1024 width. The quality is just not there (IMO) for 1600.
On the Hornets shot, the aspect ratio is a bit off, again IMO. For a width of 1024, the height should be around 685 or so. While this one is beter quality-wise, I feel it'll get a quality rejection. Some areas are sharp, some are soft.
What camera are these being shot with? (sorry, I forget from previous topics if you've mentioned that)