Like the concept, but I think the green on your t-shirt is too loud. Every other t-shirt is more subtle (even the girls aloud). You want people to focus on you not your t-shirt. It even draws attention away from your tattoos.
Other things:
Is there too much feathering around Tobias' legs ?
Is everyone in scale with each other ?
Is this gonna be folded to fit in a CD sleeve or would it be better to re-design for a CD sized booklet ?