If Disney can trademark a “special derivative” of Loki. Can I trademark a “special derivative” of Mikey Mouse that’s just the same character but wearing green a

If Disney can trademark a “special derivative” of Loki. Can I trademark a “special derivative” of Mikey Mouse that’s just the same character but wearing green and staring in my animated movie? There really should not be any discussion here. Disney cannot hold trademarks on Norse gods. They have copyright protection on specific drawings, movies etc, but that should be the limit of that.