I've been playing with this for a while. Don't know why really! The colours were pinker but I think the oranges are better. Would it be better on a louder coloured shirt??
It is too big on the shirt. The bull is one color while the guy is multicolored and the halftone seems unnecesary. You should try to unify the style more. I think a "louder" shirt color would work better ... maybe switching the background color with the bull color.