Other than looking a little windy and cold, and with some loose sand that would reduce me to tears that looked fantastic! Nice and pretty. Clean of litter too, always a big plus.
I got out for two off-road rides today but my sand was firm decomposed granite, nothing wind or water transported stuff that gets sorted into slippery uniform particle sizes.
Limiting the video camera from picking up flow noise at speed can be a challenge. Don't know the best tricks for go-pro cameras but covering mic with foam, cotton balls or solid barriers like tape or the waterproof housing can sometimes work on other action cameras. Helmet's visor could also be shedding turbulence that hits the mic above a particular speed. Maybe try a foam experiment before the Green Mountain ride. Have Fun!