maybe have a few variations of the bookshelf and have it randomized

When I saw your bookshelf model in your listing thumbnail, I got curious as I'd tried something similar before (though mine was a more drastic change). I can't tell you how excited I was for a second, but it turns out nothing has changed.

Your bookshelf model is just, frankly, inelegant. One issue is that Vanilla Minecraft can't properly render lighting inside blocks. Some of your 'books' are completely black on certain surfaces because of this issue. And that's without talking about how much the voxel-count has increased (over 60x the original). Instead of writing the above, I would've suggested some good compromises to lower the voxel-count. Unfortunately, even then, it still won't look good. I highly suggest you look at your bookshelf model again while in-game and under daylight.

To be clear, I'm not denigrating your modeling ability. It's just that current vanilla Minecraft doesn't allow it to look good in-game.

nobody:
the thumbnail:
amogus intenifies

This is really cool and awesome!!! However can you converted to bedrock plz it will be awesome to have it both on bedrock and Java