Pretty cool collab! I not only like travelling through the collection of art on display here, but I also like that you try to spice it up with some minor side objectives like a scavenger hunt and other cool niceties like the map screen that keeps track of your current location. Overall it is quite nice, though I did feel like there was some sort of unfortunate damages done in creating the collage as some art pieces look to have been damaged/pixelated when being shrunk to fit or whatever, which along with some of the animated characters sticking out like a sore thumb gave it a bit of a clunky uncoordinated look. I really wish there was a zoom function as well so I could look at the art more closely.
Other than that, there were some minor confusing aspects, like how due to imprecise hitboxes you can hover your mouse over the top of a room (but still within it) and it will think you're hovering over the room above it. I didn't even realize I could click on animated characters to have them talk. The rooms are a bit oddly titled as well, for example, saying "floor 3" when it is still the 2nd floor (more accurately you'd probably say "room 3, floor 2" and so on). Also, I wish there were some more controls to allow you to navigate the art, like maybe being able to click/drag or to use mousewheel to scroll/move instead of only being able to use the arrow keys.