I really like the second photo. (Here's the but coming...). There are two things that you ought to consider in that photo.
The first is the visible grain - particularly in the sky portion of the photo. To address this issue in the future you may want to try two things: (1) film speed and type and (2) scanning technique. At this point I'm assuming that you're using a regular SLR camera (film camera) and not digital, so I shall offer a few words regarding the former. Others in the forum are definitely better suited to offer advice using digital cameras should that be a consideration for you.
Second, the terrain does not seem level. You would need to straighten that out using one photo enhancement product or another (Photoshop, PhotoPaint, PaintShopPro, Gimp...) To get a photo just right requires a certain element of editing.
Regarding films I would suggest using slower film (50, 100 or 200 ISO or ASA). This will substantially reduce the visible grain in a photo. Not that this is bad. Certain situations offer no choice but to use faster film, and in other cases the presence of grain adds a special quality to a photo. However in clear daylight (as in your photo) and particularly for useful for quality, a slow film provides much better results.
Second issue is that of scanning. There are two types of scanning - photo (prints), using a flatbed scanner and slide scanning, using dedicated slide scanners. The benefits/drawbacks of each are quite straightforward. Flatbed scanners are relatively cheaper than slide scanners and are effective for scanning items other than photos. Slide scanners, on the other hand, offer much better scanning resolution (images are thus of better quality) but are more expensive than flatbeds. Regardless of the scanner used, the point is to find a medium which provides you with the most satisfying results for your needs and scan at the highest resolution possible.
Hope this helps,