Thumbs need to be 64x64.
Also the game can't link the name due to the space (and I think) the dash. Just do Croftinnocent and Croftadventurer, it doesn't matter what the names actually are. I also tested this and it works fine this way.

Though, something's wrong with the texture itself.

The texture problem above is related to the changed body type. It's be better if the tank top didn't cover the whole image but instead be a bit in the middle (like all the other decals, too).
Also, pretty nice decal.