-pretty coloring~ i like the colors you used. they give off a nice warm glow
-her eyes could be defined a bit more/darkened a bit.
-head is too big for body ><
-what settings do you use to get that textured brush for the hair and outfit?
-for the brush size resetting itself thing, there's a save brush button on the top right corner of the pen window. also, there are tabs going across the top of the pen window so by clicking on different tabs, you can set and save different style & sized brushes. =]