Perhaps I'm a bit late, but I still would like to express my opinion on your art.
Off course it's cute (it's Yoshi after all ) but I think the outlining is also very neat, since I can't notice any sloppy lines. The lighting is pretty good as well, but the underside of Yoshi's nose seems a bit darker than the rest of his skin. And then his face... his trademark smile, the cheerful, inviting look in his eyes, expressing his desire of receiving a big hug... so adorable... there's no way I'd refuse . Secretly, very secretly, it's one of my biggest dreams .
Thanks! I never see it as too late when it comes to people giving me their opinions on my work. Thanks for mentioning the linework; I put a lot into it, and sloppy lines are my pet peeve. Thank you so much for everything!