The next themes are “overworld” and “snow”, the last Super Mario World themes I want to do...at least for now (although I've been thinking about doing "castle", “ghost house” and “air ship” themes but I'm not sure).
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Credits:

Mario, Luigi and backgrounds sprites by: Mister Man. Yoshi sprites by: Barack Obama, P-tux7 & Sonikku. Pipes by: Barack Obama & VIIPER. Goomba & bob-omb, Koopas & masked Koopas, Piranha pant, Pokey & plant enemies, Rex, Blargg & Dino-rhino, Chocalte island (1/4) level and ground tileset by: Barack Obama.
Backgrounds, Mario, Luigi, Toad, Toadette and items and tileset sprites (SMW-SMM2) by: Random Talking Bush.
Theme icons (SMM2) by: ego-lay_atman-bay.
SFX by: Deezer.
Folder templates (and other templetes!) by: Ryumaru.
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Desert (SMM2-SMW) - Koji Kondo