Ngh, this is true. I started hurrying the leg details, because after looking at the same walk cycle for a few hours your eyes eventually go kjdsfdgkldfgkjg and stop noticing things. I think it's mostly the back leg that causes this odd effect. It definitely looks broken or something.
To be honest, I need to take a break for a bit. I think I'll grab supper, and watch some TV. I'll see if I can address this later.