Drawing of my own character "ANNIHILATOR"

Hello everyone! today i drew my own character Called ANNIHILATOR for Hive account@kommienezuspadt's tryalbycomics drawing contest. I left 4 easter eggs in this drawing find all 4 out and you will get your prize as 0.2 SBD.

Here he is:

Here's drawing process:

Hope you would like it and comment bellow all 4 easter eggs,if you will find them, 3 of them are from music world(North) and 1 is from Comics world.