I mean to me there is no problem, torches look okay but if you don't like them heck, skyblock isn't all about being pretty unless your in the top 10 for is level.. (That's my outlook) Also with the torches I place them every four blocks and mobs still don't spawn because the light level does not go below 8. (7 being mobs can spawn) Also antoher favorite of mine is jack-o-lanterns they look good and are easier to get than glow stone.