IMO, that isn't horrible. When I zoom in, I do see some flaws and pixelation, but given that it is a painted style, I bet some lightly applied artistic filters might clean that up. The MvC2 logo will need to be replaced completely, but I would be shocked if a better quality logo isn't already available. I would start by just playing with the filters in Adobe, find something you like, combine a few filters, then go out and find a better MvC2 logo, or something else you can paste over it.