Good job, you're almost halfway done with this pipe.
Take those files and don't be afraid to remove material- you really need to define the shape. For now the stummel is a lump (no offense, just trying to help) with very fluid lines that don't really follow any geometrical shape. Try to thin the shank down a lot, give it a consistent shape from the mouthpiece right to the bowl, you can use the shape of the mouthpiece to guide you. Try making the shank and bowl two distinct, separate shapes.
You're obviously having a lot of fun doing this and that's essential, keep going
![Smile :)](./images/smilies/icon_smile.gif)