Only make small adjustments at a time. Here's my totally non-professional take, based off being a lower power, but pretty aero rider who goes alright...
- Something "free" is you could try dropping your head. Shrugging down so it doesn't stick up above your back-line as much
- Front end could/should definitely be lowered. You could get FAR lower and more "horizontal" across your back
- Saddle height maybe a smidge too high? Hard to tell for sure. You could also move it forward, getting further over the bottom bracket
Now, some of the above may not be as comfortable, and you may even lose a little power, but the aero benefits will outweigh all of that over short distance races.
Oh one more thing! See if you can get a "front on" shot of you riding. That'll let you see exactly what is punching through the air!