Imma gonna be picky here kiddo. Pick #1: That work you did on the Patch Box doesn't look like patina. It looks like it's been rubbed (which it was). Pick#2: I have seen you do MUCH better fit and finish work. It looks like you rushed through all the fitting of your brass. Uneven and imprecise wood to brass fit. Especially around the lock panel and the butt plate.
Coloring of the stock came out beautiful which is a usual for you. Barrel came out nice with that browning. Lock and Hammer looks a bit spotty in the browning but that happens a lot with them so can't really pick at that.
Over all, in comparison to your usual work, I gotta give you a c+. With this being a sort of "tutorial", I expected your BEST Jon!!