Aw, thanks :3
I wasn't sure how good it actually was, but that has encouraged me to keep it the same or similar. Maybe I should add size / weight classes and gender, but apart from that it seems good.
Sorry it looks like I forgot to explain crits. On multi-hit moves, you roll for critical hit for each hit, but each critical hit only adds an additional 1 damage, so if say you roll 5 hits, you do an RNG for each, and if two of those are critical hits it adds a total of 2 damage.