both of your pictures came out really well.. i used terragen one time and i just never got around to using it more. I need to though.

Anyway back onto the pictures.. the second one i like better just because the sun adds a lot to the picture. my only gripe is that it looks faded. i dont know if you meant it to be that way for artistic reasons but i like more contrast and strong colors coming through. I think you can have both in there since you have so much sky in the picture. Increasing the blue towards the top and fading it as it gets closer to the ground would help, or fading it back, where the things closer to the front are stronger and fade as you go back.

but i do like both, really good job