I think @7snakes and @eaglereptiles shirt concepts are really spot on.
I love Toms 3rd shirt design but I think Hectors hits the nail on the head.
I prefer the ones they designed compared to the original concept.
I think they pop a little more, but it could be because I like black and white too lol.
But the refreshed logo design on your most recent post John I really like too! That one is nearly perfect.