This is my best vector yet (after my Lazytown logo vector)! The reason why it looks so good is the way I traced it. The way I traced was by making the source image REALLY huge, and then started tracing. I mostly used elongated squares for the 3d details, and used reshaped circles for the eyes, and finally, the way I did the crescents on the eyes. The way I did those is that I used reshaped circles (like I said), made them white, added a brown outline on them, and then added a normal circle inside of them and made them the same brown color. Sorry if I went too in-detail.
Credit to all. EDIT #1: Thanks for the love and favorite, Armband2018!