Pretty nice looking thing, but the orange branching doesn't make much sense ;) The brown background is a bit unappealing, try something dark blue/azure or shift the brown to more olive/dark-yellow. I would also add a 1 or 2 pixels of space to the sides, to let the composition breathe.
Thanks for the crit, DawnBringer. Much appreciated. :) I made a variant with your suggestions in mind: i.imgur.com/hskiHUX.png
I like it. I'll mull over it some more. I generally like the colors in the original but some more experimentation/study would have helped. Definitely will edit the size though, for sure.