OneHorsePower, this is an awesome build. Isanely stylish, I love it. The frame is incredibly beautiful and unique.. I would use a layback seat post and put the seat further back, not higher. Then You could probably change the handlebars angle too so they don't point in the sky like that. You will keep the low seating position as well. For those red handles I would put some red reflectors on the spokes. Are You installing lights? I think I see a front light holder there? In this case the red color from the rear light might be enough. Again great build!