Well... I would ask, unless it's going to be a surprise. And I would seperate; is it a person you know in real life or only online? If you know the person in real life then I would try to handircraft something nice. If only online then I would look at the pics I already made for this person and draw something new for them. Or do something completely new, like give them a pixel or something.
But that's only what I would do, it's not meant to fit in your case, but I also think that you can give it a thought