I have the ATLauncher, and i was looking around for shaders and found SEUS, so i directly installed it into my skyfactory 2 instance folder.
I followed all the instructions, correctly, yet still had a few problems.
Notice the lack of colours, and the cloud coming through.
I also get the error:
[shaders] Error: Invalid program gbuffers_textures_lit
I am currently running SEUS v10.1 (supposedly works for 1.7.10)
With a minecraft version 1.7.10.