Well, I hate to say it, but I can't even get to 2.2 tonight (and onto this morning).
Maybe some shut eye and approaching it tomorrow will help.
I get that only certain symbols lock up, like the x with the stick man,
W symbol with the the triangle with legs, and then the triangle (curved base) and the squiggle...
After that, I get stuck. I always leave one open somewhere.
Oh well, I will take a crack at it tomorrow. Good job above for getting to 2.2 (or 3)