Kep wrote:it's not the smartest idea to just make an SMB1 mushroom, because SMB3 and SMW are more popular at least.
That's like saying that SMB1 graphics should have by rule a SMB3 and SMW version of it. I find it quite fine to be honest. It's just my opinion, though.
I like the looks of this pretty much, but I find all of them way too bright, maybe you could tone it down a little bit. Otherwise it's a neat idea.