To be honest, e4r's edit doesn't add anything to it. But! Your newer examples are definitely improving - by using a grayish red, as said before, it will be almost right! To get the AA better, just play with it a bit and see what works!

Yeah I didn't know he wanted anything to add. So I just messed with the colors made the shadow side of the apple more dark and tried defining it more, but I don't think i worked out like I planned haha, Makes it look more rounded to me, but that could just be me.

This stuff is cool, dunno why you haven't had any replies! What genre is the game? Would like to see some mocked-up areas, to get a better impression of how the elements fit together.

It's a Zombie Shooter RPG. I'm also workin on it aswell with Mes. Sorry for the late reply, REALLY late reply lol.

I thought the floor was a wall o_O

Alright, I'm not sure if I understood what you meant, but is this better?

Yeah im changing it from pure black as we speak, im afraid id mess it up like i did my last tree a few months ago lol. Also the view is top down so I have to figure out how to make the trunk match!