Sakupen HAS improved, just not in certain areas. His directing skills are much better.
Animation? Not so much.
He does really wonderful rough work, with lots of feeling, but he doesn't take the time to clean it up (or isn't that skilled in that area yet). I guess that's ok when you just want your work to be seen, though - it takes a long time to do things by yourself, and you must set priorities.
I hope he gets a directing job somewhere. I can imagine him making awesome films if he has otherprofessionals helping him with the character animation.