^^ It's all about the silhouettes baby. Nice job on the rocks though. I'm in a love hate relationship when ever it comes to making rocks. Somedays they look like rocks, other days they turn into mud.
Hey man, good work so far the transition is always a leap. One thing that stands out to me is the lighting, it is really flat and I think you are losing some detail out of that. You could also try adding some dirt to the ground and on the rocks.
That owl looks gorgeous! I think you need to take another look at your colour choices however - especially in your environments. In the last image with the tree, your sky is SUPER saturated blue, and a very strong medium value blue at that. The green and blue also are strongly saturated and dark - and the whole thing…
It's a good start, though I wonder if you've got a goal for this piece. Since you're transitioning, I would suggest working off a piece of concept as it'll give you focus. At present it looks like you've sculpted a semi-photoreal rock with almost cartoony features, some definitely cartoon-like flowers and cartoon-like…