I like that Kojol MOC!
But yeah, both Kojol and the Makuta of Stelt have been done already...
I feel like your Kojol here is a little too iconic to be declared a different Makuta (especially since you've shown him as Kojol not only here), but since the Makuta of Stelt neither has a canon name nor a canon appearance things are different there...
If you want you can have a spot for a male non-canon Makuta? - tommorow I'll clean up the list again anyways and it's pretty clear that at least one guy will drop out.
Keep the project rules in mind, though (especially which Kanohi you're allowed to use in case you plan to use another custom one). Complexity of the MOC just like Kojol here is alright if it looks as good.
Rules and list in post 1