Critique my welding please

[mcantar18c]

Slowed down some, and turned up my parameters. These were done around 29V and and low to mid 400 on the wire, ish.
Few things I want to state before yall look too close...
1. This is spray MIG, not short circuit. There isn't going to be a nice dime stack.
2. The thing that looks like a hole on the right of the first weld, isn't. It's just silicate, I checked... like three times.
3. The second weld does penetrate the top plate as much as the bottom, you just can't see it from the side pic because the plate sticks out past the weld.

So... where can I improve?