Hello BillyJones ! I'm a beginner so I don't know if my insights will be enlightening.
The positive side is that the poses are correct, we get what the character is doing and how it's positioned. The one throwing the brick is the one I prefer. I really get a sense of dynamism from this one. The other one is that you are self conscious enough to point things where you can improve which is an underrated skill imo. 2 min for a pose is great !
Proportion wise : your torsos to waists ratio don't look correct to me, there's too much space between the two. I think it gives an elongated belly to your characters but I'm no specialist.
Either way : You got this !
