Looks really cute, the head is perfect. One tiny detail I noticed in your picture: the feets tip should be a inside reverse.
I had to try it myself and got the same square sticking out at the back, no idea how to fix that. But it was nice how I just did some seemingly random folds and suddenly I get the finished head (once I figured out step 32)
Now my dog finally has a friend to play with! (If anyones interested, I'll try and find the instructions)