You should use a reference, they are quite simple and cute to draw (=^・ω・^=)
https://www.google.com/search?q=pusheen&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjErvOXl7DgAhWnThUIHYCxB0MQ_AUIDigB&biw=1280&bih=882#imgrc=4j5VsiqS-ZZliM:
I'mma draw one tomorrow, and let you judge.
(Tomorrow, because I'm working on something, and tbh it was meant to be a pusheen, but became something else :3)