Another horizontal symmetry puzzle! Well, WHATEVS. They do what they do.
This theme of naming a picture made by black squares left me feeling somewhat underwhelmed. Sure, it kind of looks like all those things, but, well... ok... I said yesterday that variety in theme ideas is always welcome, so I'll just stick with that.
What is less welcome, are answers like ITE, ALPE, SERA, INURN (38A: Prepare for entombment, say) ("say" is particularly amusing here, as almost no one ever would say that), and GENII (41A: Ones involved in wishful thinking?). Cute clue on that last one, but still... no.
PRAIRIE is a nice word, but it's not the first thing I think of when I remember my visit to Badlands National Park. On the other hand, I wasn't fooled for a second by "21A: Form of 'sum'" (ERAT). Well, ok, I was fooled for several seconds, because it could also have been ERAs or even Esse, but I thought of Latin right away. Oh, what's that? You all did? ok ok...
"Knight 'hood?" was cute for CASTLE, and FIFI was a surprise answer to "33D: Diminutive of Josephine." I mean it makes perfect sense, but I didn't know it off the top of my head.
Too many oddities for me today to fully enjoy it. Onward to the rest of The Turn!