Me like. The second one look best. You cought the harmony in the nature there. 10/10 The first one is to white on the background hills Looks like a little to little opacity.Change that and it will be awsome to. 8/10 You made this from scratch? thats impressive. What program you used?
The low opacity look is from haze in the atmosphere. You could say it's made from scratch; I did everything except actually rendering the thing. The program rendered it. Yup
those are really good for terragen looks like you did some composition work in photoshop to fine tune everything good job dude