the design of this little guy is quite a treat. you pulled off the colors very well! the chairs design is pretty cool, too. seeing effort put into relatively unimportant elements is always a treat. though, i do have a few issues with this artwork... the thick lines on the pants are unnecessary if everything else is not outlined. some other parts of this are somewhat weird, like the face for example, but stuff like that can be improved with time.
overall, this is well made and you have clearly done your homework. all you need is to practice a little more, and youre golden. as long as you keep drawing, youll keep improving! i have my utmost faith in you. good luck!