Despite the title, I don't think it's entirely necessary for these rewards to be for LV 1000, although I currently find it more coherent for the reasons I'm going to mention.
The partially golden skeleton and golden legend curse skins were supposed to be variations present as rewards at lv 1000... The ghost curse is often left unused because it makes the player too visible to enemies, adding a golden curse just for the eyes as an alternative to displaying lv 1000 seems ideal to me.
The partially golden skeleton is not so necessary but it is a welcome addition, more similar to the NPCs, and because it is a skin so close to what we already have I think it should not be implemented for a different level but just as a variation.
