Doesn't look like you could have stretched your legs out completely straight?
I just flew in 20 J and my feet just barely fit straight with bottoms of feet on the wall. I AM 183cm for reference. I use a inflatable foot pillow to mimic a poor mans J seat.
For a day flight I will book ay PE but I will try to avoid it for the night flights.
The first food is usually gold but the second meal is crap from economy.