It says it's fan art but I can't tell what from. I think it might be something to do with an online TCG.
It's from a korean TCG named Destiny Child.otaku_emmy said:
It says it's fan art but I can't tell what from. I think it might be something to do with an online TCG.
Edit: looks like her name is Speedy Mars, but there's no trustworthy source for that.