Ivy Hiding Behind A Tree

I just got a new Bamboo Wacom Tablet. I decided to draw. I found this stock by . Here is a link to her original stock photo kittythecat-stock.deviantart.c… .
I decided to make it my character Ivy. She has green hair and likes to wear pink, ruffles, and corsets. She can also make plants grow.
I used CorelPainter to draw the lines and color this. I tried it out because of the many options of brushes that I used to make it seem more textury.

I would love some critique on my coloring. I can always improve.