Good to see you followed through with the plan matt, well done
Just to address some of the broscience going on in this thread:
1) matt looks flat because low carb diets cause glycogen depletion within the muscle - hence your muscles look smaller. Its glycogen & water loss NOT muscle tissue loss.
Provided the performance in the gym is maintained, he isn't losing muscle, especially on gear.
2) Protein intake should be anywhere from 1.25-1.5g/lbm for people with a bf% like matt, anymore is just overkill.
You may go up to 2g/lbm if your deep into single digit bf, but it isnt a must.
So matt ignore all the bullshit about the above points & keep up the good work.