The leaf shapes and the trunk looks really nice. The top part does seem a bit flat though, as if there's no defined light direction. It would look much more 3-dimensional if you added some shade variation. For example, if the top of the tree was lighter and the bottom part got much darker.
Here's an edit that shows what I mean (I hope you don't mind)
Nice tree! and I really loved the process gif!. Nice color palette too ;)
@GoodIyay: I don't mind you editing it at all.Someone elses perspective always helps
.I actually like your edit better It gives a proper direction of a light source.Thanks for the help.