For #4, I'd say it's great! What's going on with these guys having their first several pipes so much better than my first several? We must be sharing too much information here or something, because people seem to be getting good too fast.
You should be proud of it. While the rustication isn't conventional, I think it looks pretty cool, and I would say you did it in a what that showed artisanismship. There's something about the height or shape of the bowl that catches me looking at it twice. I feel like it might be a tad too tall or too skinny, but I can't say for sure.
Very nicely done though.
Great Job.
Brian.