For a first attempt they are cracking as you haven't gone for the normal first knife most people make which is a Scandi grind which is by far the easiest grind. I just noticed the question regarding the wet and dry. Yes this can be done but a high grit wont do anything buy show any imperfections, in fact it most likely wouldn't touch those blades.
Yes, we wanted to make a first knif together but also one we would like to keep so we got some help and advice on how to make itOne or two perhaps, but not by me 'coz I'm a good boy
Aah, sounds like you had professional help with the heat treating then ? Good move.