He can't cook. Like he can burn salad. Horrible at cooking, most complicated thing he can make without blowing up is cereal. No milk just cereal. Not even in a bowl. In a cup

Ok

My guy looks like the old Enderman, but with some flair

Because he is based on an enderman

Fair enough

Was a creeper then got transported to the nether for death but then evolved and doesnt explode

Already have a backstory for him

terrified of creepers

Maybe, maybe