Aw, this is cute, I really like how you did her feet and hands, haha. The folds in her skirt are real nice as well, the whole thing has a sense of motion to it.
Oh, and since you're new to digital painting, I have a good little piece of general advice. Try using different colors to shade your pictures, rather than just black or darker shades of the original color. For example, what if you'd shaded this picture with a dark green? It tends to help with atmosphere and make pictures more cohesive. c:
But it's also a really complicated and good story line that ONLY makes sense after you read for hours .__." Its a flash comic with really bad graphics for MOST of it. But it's interactive through most of it and after you get really far you get to play it like a game, actually controlling where characters walk and stuff. Don't worry, if you mess up the story doesn't change. There is a lot of cool music and flash videos for it and the characters are fun, as you can see from all of the fanart floating around.
It's full of profanity and cartoon gore, though. Not exactly the most wholesome of things to be reading in that respect. Its also extremely stupid and confusing at first, but it all starts to make sense around act 4.
Basically, its the story of a game, a game that warps reality itself. When activated, it sends meteors hurling toward your planet and the players have a limited amount of time to beat the game, creating a whole new universe in the process, or fail and break the chain of creation and destruction, falling out of existence altogether. There are two game sessions going on at the beginning of Homestuck, one with four human kids in the not so distant future, and one with these trolls that everyone around here seems to be obsessed with in the distant past. The trolls bug the kids via some sort of timetraveling IM thing, trying to help them with their session, because aparently, the humans do something wrong, horribly wrong that warps the timespace deal and screws up the trolls' session, ending in their defeat, and the destruction of BOTH our universes. HOMESTUCK is the story of these two groups of players, working together, though it gets pretty WEIRD and CONFUSING in places, to save both of their races and end the reign of the game.