Flamepanther! Long time no see.
Yeah, your Super Mario Bros. Dx was a great kick in the butt for me to get my hack up and going. Even though I did... highly deviate from your original designs, your fingerprint is still evident in 'Classic Mario', which I just posted up for beta testing. I'd be honored if you gave it a whirl!
Speaking of which, dang you do great work. I LOVE

the new koopas, the lime green palette is pretty cool too, and the entire underwater scene really came together nicely (pair it with the night sky). My only suggestion would be to keep at it. The SMB3 graphics are paling in comparison to your new designs; I would definitely recommend making a new mario to keep pace with his detailed environment.