Heck of a first project and a lot harder than what I did first! I hope you have been able to uncurl your fingers after all that sanding.
The only thing I would suggest is that (in future) you make the grain of the drawer fronts go in the same direction as the wood it fits into. In this project, it's no big deal, you've made something to be proud of and I don't mean to detract from that. Little details like that will make your later projects look even better. No doubt you're off to a good start!