About:

Boss Refreshed is a texture pack for most recent versions of Minecraft that remakes all 4 Vanilla bosses and their normal counterparts into more ferocious, epic, and terrifying versions for people who are seeking something different without departing too far from the original Vanilla style. All bosses have been remade, as well as the Wither Skeleton & Guardian.

Attention:

While Optifine is the more popular method of using CEM Packs, I would personally advise using Entity Model Features. The reason is that for Boss Refreshed specifically, the Ender Dragon has no animations on Optifine. Why this is I have no idea.

Download Entity Model Features for Forge/Fabric here.

Ender Dragon inspired by Proddy's Tender Dragon, Wither inspired by Joosh_7889/GogoMines Better Entity Models.