Your form looks good. The other guys form is terrible. He is reaching his knee out way too far. He is obviously over reaching just to try and touch it down. As well all know (i hope) touching a knee down doesn't make you fast. Notice how your knee is farther from the ground even though you are leaned over considerably more than guy #2? In fact I regularly ride with the quickest guys around my area and NEVER touch a knee to a public road. I keep up just fine and sometimes have to slow down in a corner to avoid rear-ending one of them.
More or less you know how to ride. Just move your ass on that seat and kiss the mirror.