I am a newb to this board, but have been leather working for a while and would offer these thoughts.
I started out making items where I did not finish the inside, and I see that a couple of your pieces are this way. Now, I at the very least will throw some Tan Kote on the inside 'flesh side' leather on items even if I am not going to see them. I just think it looks better made when all the surfaces are somewhat the same color. Having a dyed outer skin and nothing on the inside has killed a couple of my projects.
Also, the only other thing that has not been mentioned is the stitching consistency. You have some great stitching, but it kind of flip flops, so make sure your very consistent with what side of the stitch your pulling needles.
They all look great though. Keep up the good work and throw some fire into it and tool something