Used a bit more red on the leaves,is it more natural?

Thats a good approach, but i think the tree trunk is a bit too massive (or treetop too small)

sorry for triple post,thought it didn't send them,then found out they were on a 2nd page

(already reported myself to moderator)
Tried fixing shadows,but I don't know if its even noticeable

(light source should be 3/4 on the left and a bit from above)
Here I dared to change the shadows more than usual,is it better?
