Feel free to use a bit of artistic freedom so long as it isn't out of control. It needs to still look like a staff.
For the colors
So the general theme here is Dark blue and Purple, with hints of black and white. So I will go down the list here sort of.
Body wise: He is a 23 year old man with Light Blonde hair, Gray eyes, a healthy amount of freckles, tan skin, and scars here and there (heads, hands, feet, etc). He has a sort of lawful neutral/ Diplomatic perspective about the world around him, as well as a sort of...'Warriors heart'. He also has a sort of warrior monk build to him. He's not super skinny, but he isn't Mr. Macho Man either.
For the boots: They're black with the stripe part being a Navy Blue(The bit that comes around the laces and goes to the back. I can label it if needed)
The cape: Navy Blue on the outside and the inside is a dark violet, the back is decorated in sort of clock designs which are in gold (Just a bit of trivia).
The Wraps around the hands: Same as the ref picture, but if it helps in detail: Navy blue, black and white.
The overshirt/Tunic(Can label if needed): A lighter shade of navy blue.
The Undershirt: Dark Violet.