Wow that dress on her is so awesome and cool. why do you make Twilight so awesome and cool? you know what am happy you make the 6 mane ponies look cool and awesome. The Vision is soooooooo clear and nice. Keep on the good work doing this art it so Awesome and cool. I bet people look at your art and said"wow Twilight look awesome and cool" so yeah maybe people would say that i don't know am just guessing that all. but remember I like your art and maybe the people will like it too. so keep on the awesome job I believe you can do it.
For starters is vision, the dress is a simply beautiful piece of work, it was obviously not done quickly, and from what I can tell you spent a while on each and every piece of the dress, it looks very real the way it slightly folds in the back. Another key factor into vision is her eyes, they seem real, the way they are looking at the viewer.
Originality doesn't require much explanation, I have never seen this particular crossover between twilight and diablo 3, therefore it gets full stars on that category.
Technique is why I hesitated to write a critique, I don't know a lot about it, but from what I can tell is that the technique you used is good.
Impact was really easy to decide, i mean, I saw this picture while browsing through some art, and it just screamed look at me! I'm badass! I don't know what it is about this pic but it just pops.
Overall, this is up there with some of the coolest stuff I've seen on this site, keep drawing like this and your pictures will be awesome.