I love the textures, they aren't horrible! Especially Moon Lord's, and Cultist's Ice Mist attack retexture. However, I noticed that Spazmatism, Brain Of Cthulhu, Creepers, Empress Of Light, Duke Fishron and (partially) Queen Slime still are in vanilla textures. I know it's work in progress, but just reminding that you skipped a part of the bosses in case you forgot.
Keep up the good work!