They still look SMB3 to me but for a recolor, this is actually nice for SMB. We rarely see SMB relative graphics nowadays so this is actually nice for having Yoshis into SMB even if it's a simple recolor. Good work on that!
Yoshi with a blue shell, or blue Yoshi with a shell? I think these can both be included in one more screenshot, especially if you've already shown the red shell/Yoshi combo.