Your latest pieces are looking pretty good. You don't seem to stay on any one piece long enough to learn much from them. Like you said you're only using the same tools over and over, but you're not improving your technique. I think really investing a bit of time before a piece to gather reference might be a good start. That said, your stuff is definitely getting better though.

You're 27? I think you're almost 10 years our senior! At least for a lot of the guys around here.