I really love this.

 I missed this. I like this a lot!

 Foliage is epic, very well done. Wow.

 I do think that's better. This is a very good tree--a lot of depth and a lot of crisp detail. I'm looking forward to seeing more from you.

Thanks guys!

@iMoose: I edited the trunk a little, what do you think?

Wow, good work!!! :-)

 Very impressive, especially for your first submission! The foliage is well defined and has some nice variety in its clusters. The trunk looks pretty nice, though the amount of contrast in the leaves makes the trunk look a little flat in comparison. Maybe add a bit more light/dark contrast to the trunk, to even it out with the leaves? But good work so far!