I like open eyed visuals better as long as i'm in a good confident headspace, most of my closed eye visuals on lsd just feel like i'm travelling through an infinite tunnel, can make me dizzy! psilocybin mushrooms closed eye visuals at times have give me that "this feels like i've also ingested poison" quality that some trips have. And I love my mushrooms but they can take the carpet right out from anyone... respect!
open eyed visuals can really be fun when your exploring a colorful festival makes everything seem like it's a different land all together!
closed eye visuals turn into introspection for me pretty regularly