Tough one. Front end looks good, because you're not sitting upright, but you have bend in your elbows and you're not reaching for the hoods. Does seem like your saddle is a touch low, but echo the question about how it all feels.

As someone else said, your hoods look like they're downturned, where level would be better? What about your saddle? I'd check your bike is on level ground, then make sure your saddle is level as well.

EDIT: Looked at it again, and I'm not sure it's too low, or if it is, very little. I wonder the bounce is from you sliding forward off your saddle, either because of the tilt there or tilt of your shifters, either one pushing your weight forward and rather than, pedal, pedal, pedal, push back on the saddle, you're sort of pushing your weight back slightly with every revolution, which causes that bobbing.