"The Forms of Itsuki" is a series of chibi drawings specifically to showcase all of the forms Itsuki (one of my Yoshi OCs) has taken over the years. I use these specifically for the thumbnail pictures in the Shapeshifter Log documents.

Yoshi Feather and Human Guill accidentally brought Yoshi Itsuki into a species swap, and as such, Itsuki turned human. Notably, with one of Itsuki's defining visual traits being his longer tail with two spikes or crests on it, Itsuki very uniquely has a large reptile-like tail in his human form. In addition, becoming human using the power of his own gloves means keeping his normal Yoshi colors, so he tends to look far more green when he turns himself human. To see what he looks like when magic is used to transform him, click here.

You can also view a doc with all of Itsuki's forms here.