Alright now, this is a super shot. It is a small Fishook Pincushion (Mamillaria) in full bloom. I don't think I've ever seen them bloom this full before. At least I hope I didn't miss it if they have!
I spoke with a photographer from the early days of Arizona Highways Magazine and he said they would pick flowers and use toothpicks to hold them to the cactus to get a full bloom like these here (usually on the saguaros). Those were the old days - they really don't go for that now. In my opinion, these shots are Arizona Highways worthy, and that is saying a lot!