Any suggestions? What needs the most attention?
All procedural textures/plugins, btw 
That is very cool looking, if you worked on anything I think the rock part could be a little different but actually I like the overall picture very much.
Very well done. Personally I probablly wouldnāt change a thing but you did ask what needs the most attention and that was what I came up with.
Paradox
Cool image,
nice setting and textures 
Although rock may need more work. How many textures you used? Maybe another one cloudy, ggreenish, giving the idea of patches of moss?
Stefano
I liked it as soon as I saw it. It was like āahhhh.ā Kind of cool looking (temperature-wise.)
The only thing I would suggest would to make the grass a little more dense (ala Maleficoās [I think] tree image) and to vary it in height a bit.