Well I’d like to help but I am a little confused. Do you already have a half sleeve and want to add to it? Do you want black and grey top half with color on the bottom half? Do you want to go over black that with color? Sorry just want to get a better idea of what you are saying. But from what I’m getting from your list it most likely won’t work out or just won’t look right.
If you could elaborate and be more specific you will get more input on what to do.

Gotcha. Post a pic or two of you can. That would be a huge help.