Newby Beginner. Looking for guidance

[LeMarky Dissod]

Can't tell if 2.73 or 3.23, or what gear you'd be in @ 15MpH or 25MpH.
Anyway, based on the improvements you made from the 1st test to the 2nd, you have room to go a bit richer.
If you're still in open loop, multiply the relevant cells by 0.95 (depends on coolant temp sensor & MAP sensor).
If you're in closed loop, you could try raising the 1st 2nd & 3rd O2 swingpoints [away from 350mV] toward 500mV. (Leaving it like this after the test might waste MpG a bit.)

There are other shortcuts, like moving your BLM Cell RpM and MAP Boundaries and then driving around a lot to get better resolution at those speeds.