Yep, great work! I'm sure you've been in a calorie deficit for the past year to get as lean as you are. At some point (you may want to be leaner), you should try and increase calories and plan to add some size. Over the last year you've likely had some recomp happening, but you should shoot for a mass phase. I'd add in 100-200cals a day for a week and see where you can maintain the same weight. Then don't get crazy, just add 100-200 more on top of the amount you just found, then work away in the gym for 6months to a year at those cals.
I agree with everything John said about your physique. Your bi's dominate, and your chest and shoulders need to come up. Been doing this a while and the number one thing that works for me to bring something up is frequency. I'd add in more benching and overhead presses. I'd shoot to bench twice a week and do military or strict presses twice a week also.
Hope this helps, keep up the great work... looking good!