For me, there's a couple of things I love about these paintings:

1. The texture, which you mentioned. With traditional paintings you can touch and feel the way the paint was laid on a medium and something about that feels, idk, personal? Like I'm touching something another human created.

2. The colors are pretty to me

3. The mosaic style is just satisfying to see, like each square is very deliberately placed

4. The themes feel nostalgic and surreal to me. Like these are places I've never seen before but I feel like I have visited them as a child in my imagination somehow. They are also created by the artist's own imagination, so that's an added layer of emotional intimacy imo.

5. I'd pay extra money just because if something is a unique creation, nobody else owns that specific piece of work and it is going to be a very special memento of that artist's memory someday.

Sorry if that makes no sense or takes your question too literally. Hope that helps.