El destructo: don't make me come over there!
My understanding of a pyramid bow is that it tapers in width in one long line from fades to tips, and that the thickness is essentially uniform the whole way along.
Yours is damn huge, but anyone can see you like to use your bows as windbreaks or canoe paddles....
I've made a couple of the HBO pyramids now, and they both came in at about 40#, plus or minus. I think in order to get a bow up over 50# you need to make it wider to begin with, so that at the fades you've got 1 3/4" or even 2" of meat. I'm not into that, so i think i'll hang up the pyramids until someone asks me to make them a 40# bow. They do shoot fast! But so do my other bows...