I spent a number of years exploring "black as a neutral", unfortunately most of those were before my digital camera. I do have pictures but they are old school developed type in photo albums and not scanned in.
Here's one of my "almost Amish" projects, still waiting to be quilted. I have a pattern and need a bit more practice before I attempt to do a feather border. It is actually "Midnight Purple" for the background.
PS -- have you looked at the Bonnie Hunter fabric selections for this year? I think black or at least very dark could work well with bright Aqua, Red, and Orange.
I do have a thread submitted for this year's mystery, should be up today