It's really coming together quite nicely! I like how the flash of the camera really shows off the reflective pieces.
It would be a ton more work, but really nice if you put access doors on the side between the trailer and bed, so the airflow has something to flow on. Forgive me if I forgot that you've already done this.
P.S. I didn't chime in yet... I think you should paint the whole thing black, put a big ecomodder sticker on the back from one taillight to the other and a smaller one on each side with a qr code right next to it in case you have somebody who actually cares about qr codes.