The other blends I got are late singles, and one of them just started showing color. I'm pretty sure Gentle Giants is a blend of the Impression series, minus the red (Pink, Apricot, and Salmon Impression). Since they're all sports of Pink Impression, they coordinate nicely together. They also offer a mix with red included that I like. I cut a bouquet of all the colors and there is enough pinkish undertone to Red Impression to make it blend softly with the others.
The late single mixes I got were Three Queens, Strike me Pink, and the French blend of rose tones. I'm uber excited about the French blend- they look like they're going to be really tall and stately! I'll get some pics this afternoon.