The fit between your stem and stummel is quite good. Looks like you don't have any gaps at all. Great work.
I do have two suggestions.
First I'd suggest bringing the "chin" back a little bit. Notice on the Ardor pipe that the front of the bowl starts with a more severe taper curvature and then begins to straighten out at the bottom, making the "acorn" shape a little more apparent. On yours, the front of the bowl has a pretty uniform curve, making it a bit barrel like in shape. If you bring the chin (the pointy part at the bottom of the acorn) backward a little bit and create less curvature on the bottom half of the bowl, you'll probably have a pipe that looks a bit more like an acorn.
The other suggestion I have is that the shank is too short, too thin, too straight, and comes out a little too high from the back of the bowl. Take another look at the Ardor. Notice how the shank to bowl transition is seamless. Also notice that the shank is a bit thicker and significantly longer. If the shank is too short, the pipe will not look well proportioned. It's like having short legs and a long torso--just doesn't look quite right. You may be able to bring the rear of the bowl inward a bit toward the tobacco chamber to create a bit more of a lengthy looking shank, but if you try to do that, be very careful not to take off any material from the shank itself. Looks like you're close enough to the draught hole as it is.
I can see improvement in specific areas which is really a good sign. You've been paying attention and then actually taking the time during your pipemaking process to put people's advice into action. That's a great quality! Keep it up girl!
Critiques welcome. I really like this shape and think I might spend the next little while playing around with it.
