What class was this project for? I'm interested to know that.

How did you clamp it down when you milled it for thickness? I wonder, if you use a mill with a tilting head, if you can run a fly cutter a little off perpendicular and that way get your hollows machined. It'd help if you left the blade section long and maybe didn't shape the tail until afterward, so you'd have some good meaty steel for clamping but could then trim it--and the clamping scars--away.

I have no experience making razors, but have tinkered around in a machine shop a little.

I worked at a construction project a few years ago, as a second-year apprentice at the time, and it was a pretty badly staffed job. There was only one truly good craftsman among the electricians, and he was not a gentle personality. But I always went to him for feedback on work I was doing for the first time, because I knew the other guys didn't care if work was good or not. So most of my feedback experiences were unpleasant, but I bore that so they'd be useful.

Best wishes and keep at it.