SMBX GRAPHICS REQUEST

So I'm currently working on a smbx project, after putting many rpg attempts on a hiatus for a long while. And I have a certain level in mind, a level centered around the 1950's style, stuff like greaser koopas, goombas, etc. If anyone on here makes smbx graphics, can anyone make something like that for me? Yes Full credit will be given. I would do this myself, but I don't know how the whole smbx spiriting thing works. Thanks