The end play to this seems rather ambiguous. The first 2 verticals and the last 7 letters of the 3rd vertical seem certain. The extra 2 letters in the 3rd vertical improve the illustration but I don't understand their relevance. Are they a thematic abbreviation, perhaps for what the 7 letter name produced? I can't confirm this anywhere. Initially I had the 8 letter word at the bottom, and assumed the 3rd vertical was the cause and the first 2 verticals and the 8 letter word the effect but I like the 4,2,6 option otherwise it's rather a coincidence. But I don't see how this contributes to the illustration. And is this then the effect with all 3 verticals being the cause? At one point I was also considering a 4 letter diagonal word starting in the 3rd vertical. With the 9,9,7 verticals and the 8 letter word at the bottom this gave 37 letters but only 36 cells, and I went off the idea. I think that when you solve something you should feel confident that it's right but it doesn't look as if this is going to happen in this case, or are we ALL missing something?