Thanks to another kind anon from 4chan we also have these.
Hopefully some kind anon will share the full artbook that came with the "Private Edition" version of the game,if someone has the scans of that artbook they are welcome to post them here on E-Hentai Galleries.

Here's the website of the japanese surrealist artist that created this game.

http://www.t-s-k-b.com/

Here you can find the game.
https://archive.org/download/GarageBadDreamAdventure

Wow, very Giger-ian

Base +13

I'm in to weird art like this. People should go check out artwork by psychopaths or people with schizophrenia. It's w e i r d.

Base +7, clockwoke +2

really a strange, grotesque and great art

Base +5