went back and tried with fisheye but botched it by not getting my body entirely out of the way and before could try again the guy became aware of and bothered by my presence, so chose to move on... at least this is roughly 14mm FF fov...
Wow what a grand shadow play! Love the inverted vees formed by the ladders and the softer shadows from more distant objects are nicely complementary. Add all the sharp angles and the super contrast and you've won me. Easy Fave.