I like the black because I think the contrast gives the quilt a bit of punch. I went and looked at the pattern and agree with some of the others that if you continue and want to minimize the black that would look good too. It sounds like you are not happy with it though and are willing to start again. This would make a beautiful baby quilt if you have a special daughter/niece/granddaughter/goddaughter on the way. Sorry I’m not much help.
BTW I much prefer your center to the original!