Interesting, the contrast with the mountains is better, the "glow" around the coasts is lowered a little bit too, though I might try and lower the contrast even more.

I wonder if going with just a slightly more subtle hue of green from the forest, rather than such a radically different one might work better?

For the forests, from what I can tell the problem might be that the brush or texture you've chosen has a lot of linear / straight lines. Something more rounded / curved might work better?

Overall I like the general vibe and concept a lot, though. It feels . . . kind of wild, and savage, a bit mysterious.

Which elements are you using with Wilbur?