Beautiful job, Cora. That transition from Carnie to triangle to armbar was about as cool as anything I've ever seen on the mat. Of course no performance is ever perfect, and we are all constantly learning, so I'm going to give you some specific pointers where I see some room for improvement. I'm only doing this because I want you to be even more awesome. All of the times are from the first match. Also, I should mention that all of these tips below are bad habits that I used to screw up all the time, so don't feel bad!
0:53 When I'm getting stacked like that in crackhead control, I actually like to switch back to foot-on-hip (in this case your left). I use that foot to stop the stack and also to rotate for a better angle (clockwise here).
1:05 & 2:42 If your bottom leg (the one not participating in the shield) isn't on the hip or in crackhead, you've got to hug it tight to your opponent's chest. A savvy opponent will push it to the mat and knee slice for the pass (this happened in your 2nd nogi match as well).
1:22 Don't overcommit to the Carnie; make sure you follow your opponent when he/she rolls out of it. If you follow them up, you can take side control, attack the baby arm, or even a far side kimura.
2:12 Don't extend your arms to finish the kimura. Keep both your arms and your opponents arm bent, and rotate your entire torso to torque it.
Anyway, those are all relatively minor. Keep up the great work and I have no doubt you'll be a world champion. WAR CORA!!