Nice to see a small and considered modlist for lower end pcs. I use Silent Horizons II with NAT I and was blown away at the difference a reshade makes. Lighting is another important aspect to get right, especially indoors. LUX by GGUnit is a go to for many players, but I'd like to see alternatives if you have the time for a comparison vid.
Good mods, however i let ' HD Skyrim Overhaul - Mid Quality Pack ' overwrite Skyland. Although underrated, it's got higher quality landscape textures that cost much less performance than Skyland 4k and has better looking doors for Whiterun imo.