I've listened to a bit of each and I think they would make great editions! I like Halo's Infinite cinematic style soundtrack and I think it would make a nice edition, I also really like strings to be honest so it is nice to have a more string-heavy soundtrack. For No Man's Sky, I only really knew that is was a sci-fi exploration game that feels infinite but I was not at all expecting the experimental rock influence, I think it would fit perfect! I was really looking to put more rock-influenced soundtracks on the list. I looked a bit more into No Man's Sky soundtrack and apparently it is a bit like minimalist composition too (don't know the term for more complex music that uses a large variety of phrases in a non-fixed structure), so that could be pretty interesting for a theme!