First, the very nature of the question turns me into Indiana Jones, screaming "It BELONGS IN A MUSEUM" into the ether.
Second, Rick's Yum is not yours to Yuck. He was asked a question, he likes Der Kuss, maybe best of all. It's as valid an answer as any other. Just because you prefer the Bosch, does not mean that Rick, or anyone else has to do so. Lots of people like French Impressionism. Lots of people like Thomas Kinkade. Maybe Rick appreciates the art nouveau and Arts and Crafts movements represented in Der Kuss. Maybe he likes the 2D/3D conflict. Maybe he likes the opulence of it, with the gold leaf, or the call back to illuminated manuscript and other glittery bits in art history, like a call back to the Byzantine mosaics in Ravenna (a place Rick is quite fond of). Maybe it just hits his pleasure zones, and the Boschian nightmare doesn't. Or maybe it was the first thing that came to mind.
I'm not gonna disagree with Rick's seeming delight in eating every weird local fish that crosses his path in Europe. Not my thing, but Rick's from Washington, and they get fresher fish out that way, and he grew up eating it.
This is an interesting thread as a whole, but really, your taste is not universal, as Ricks isn't and mine isn't. No one's is, until the Cybermen take over, and then we'll all love Anne Geddes photography, as much as we will be able to love.
I should note that next year's planned trip is Spain, and one of the main reasons is to see our third major Bosch, so it's not like I would ever yuck your yum. I love it. But Rick is a long way from being a Bosch loving weirdo.
As a fig leaf, here's something you might enjoy, or might hate.
The Garden of Emoji Delights by Carla Gannis, a VAEFF selection.