Phases of Maul in order:
Uncanny! I just doodled a Maul in mspaint yesterday and just saw your submission today. All incarnations are really good and faithful to both the character and your style. I would've loved to see a concept art style with the neck spikes, but I don't think it's a canon incarnation. Your take on the full body would be cool too, but that's a lot more time and effort. Great job!