To wrap up this brief series, here's Rosalina, the most recent of the Princesses from the Mario-verse. The little floaty star-dude is her pal Luma.
click above for larger view
I'll be honest with you, I don't really know anything about Rosalina, other than what I got from skimming her wiki. I haven't actually played Super Mario Galaxy, but Rosalina is one of my drivers of choice for Mario Kart.
I don't have anything planned for the immediate future, but I think you can expect to see more Nintendo characters from me. There's a simple yet iconic quality to Nintendo's pantheon that makes them a lot of fun to draw.