From the photo, I agree with Jeff, the seat looks a bit high. You look a bit “perched” on the bike. Also looking at your feet and hands, the reach (horizontal distance between the feet and hands or more precisely BB to center of head stem) looks short for how tall you appear to be.
Yeah im 6’4, when i ordered this bike from DB it said on their site it was for people 6’3 through 6’6, when i received it i discovered that sadly it was no where near that size. Super bummed but I’m probably going to end up shipping it back, and yes my seat post is like a mountain back their because of my longer legs. As to the the frame size its the largest they make and considered a “XL”, first thing i did was roll my bars forward and adjust my seat to try and make room in the “cockpit” sadly none of them really made a huge difference
Maybe you guys are right, It had a sticker saying XL sized though? Maybe they mislabeled? And yeah sadly i feel it too mongwolf thanks guys I’m sending it back and going tomorrow to a bike shop to get more help on sizing