That's crazy, you look a lot heavier. I'd say in the 190-200 lb range. I'm almost up to your stats odd enough, still natural 5' 11" 180-185 lbs @ 8%. I'm only 19 so there's still a long time to go before I think about enhancement.
you look your best when super lean and pumped up in the gym. My best pics here are all when I was at at the peak of my dieting, and pumped up from the gym, so it creates an amazing illusion. Funny thing is I was swimming in a large t shirt, like besides my veiny forearms I didn't look like I even lifted
that's bodybuilding for ya. I got to 195lbs natty but I was fatter and I looked 1/2 the size in pictures....all an illusion.
Keep training hard bro, try different routines, I used Layne Norton's PHAT program on and off for a few years and feel like I made my best gains on those kind of 2x a week non linear periodized programs. And I don't care what anyone says, your nutrition is vital for a natty BBer. Ignore the fad diets this sport is infested with. My greatest gains came with a normal 6 meal a day traditional bodybuilder program of 40/40/20 macros.
I always say this, that on my worst day now, when I come off cycle, and quit training for a month or whatever, at my worst I still look like a REALLY good natty bodybuilder. Compare this with all the dudes you know who juice right off the bat and bloat up for 12 weeks and then Shrivel down to nothing Ala Cleanest Natural. You have gear there for the rest of your life to play with. I set a goal for age 25 to try it and I'm happy with my choice for choosing to wait.