A little late, but IMO, I would have changed the color scheme for the quarters and the twenties... quarters should be bland. That chocolate chip IS NOT bland.
Unless you are upping the stakes, its sad that the hundy won't see the table much... Its a great color combo...
If it were me, black/grey would be the quarter, blue is fine as the one, purple/pink for the fiver, yellow for the twenty, chocolate for the hundy.
Then again, to make sure the chocolate is in play, chocolate and blue as is, purple/pink for the fiver, yellow for the twenty, black/grey for the hundy.
Also, IMO, this is a great set. Personal to you, but not so esoteric that it doesn't have resale value (and we all know you're not going to keep it... Waiting for it to be delivered before we set the line for over/under...)