Kind of reminds me of a lot of war hammers I’ve seen when I’ve been looking for reference pictures.
In my mind I picture them looking like a modern claw hammer head, but they usually have these spikey heads instead. I wonder if this is for the same reason as you’ve described on the poleaxe hammer.
My poleaxe was based on this reference:
… which was my favorite of the ones I found. I really like the variety in the different weapons. I guess it makes sense; everything would have been made by hand, and probably every warrior would have their own preferences as to the particulars of each weapon. After I make a good mix of weapons, I may go back and make variations of each one.
I like that bottom spike on yours though. Added: