I would concentrate on composition, both of them are messy and look like they were taken with out much thought. Whats the point of intrest ? You havent used the colours very well in the first and although it looks like an interesting setting in the second you haven't worked it well. Need to work your foregrounds, mid grounds and back grounds better, need to work the lines, you have the road, but miss the fence and telegraph poles. The horses, fence post or telegraph pole would work in the foreground, perhaps some colour in the foreground in the first. Landscapes are difficult to do well, I tend to keep them simple work your 3's and 3rds, when you get better you can be more elaborate.....bend your knees.