The Band Perry, 35"x20" concept. I found that I needed to add the rust orange to help out with details at this scale, as each face is down to about 5" wide.
A couple, revisited. Still a 25"x20" concept, but slightly different cropping and treatment of the eyes, mouth, nose, shadows...so basically the colours stayed the same.
30"x25" concept of Lady Antebellum. I think that this is the minimum face size that I'm comfortable working with to keep some sort of eye detail, at least for these seven colours.