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is it possible to get a psd with mask layers, so i could tint the hair , skin and wear? (like for the grassland)

This is currently not possible as the spritesheets are packed with external tools (not photoshop). My best suggestion at the moment would be to create the sprite sheet exactly as you want them and manually make masks in software like photoshop  using wand tool or similar.

Sorry, but I hope that helps.