Glad to be at the last 4!
I don't see a problem having 4 shirts. Nikkom and mine are both quite different, from each other and the ones you've chosen already. (come on, we need at least one with that vintage look, vintage is the new retro).
I have one design in the making, which will be better than the one that's on now, but a bit the same style. Haven't found the time to finish it.