Where is Yoji Shinkawa’s art published?

I have seen so much of Yoji Shinkawa’s art over time yet I never know, where exactly is his portfolio published? I know that he is an art director and designer on Kojima’s games, yet as far as I know, very little, if any, of his work makes it directly into the final product beyond some of the Metal Gear game covers. Where does all of his stuff end up? (Death Stranding or Metal Gear)