I think it's got lots going for it already. The colors you used work well in the water and trees. You should sharpen up some of the foreground details and make them a bit lighter than the far forest. I think the water looks good as it is and with more sharpness in the front it will make that look even better. The clouds are pretty good,too, though I'm not sure I like the one in front of the mountain as it kind of distracts the eye from the center. I like this very much.
drawn in 2 hours 48 min
drawn in 36 min
I officially hate you XD
drawn in 31 min