Now you should have the arms and tail done. Here are what my monkey's arms look like unstuffed.
The second picture is of all of the pieces. The ears haven't been made yet, they're just a piece of sock.
For your tail you can either stuff it or make a small strip of material. When I made mine I stuffed it but made it to fat and short and when I sewed it on it didn't look, er, right. So I made it a strip of cloth.