Ice-- I think since these are in sets you'll be fine with mixing the aquas and greens. I really like them.
Wildyard - I feel the same way every time I make a scrappy quilt -- I just end up with smaller and smaller scraps that I hate to throw away. Now I do Bonnie's mysteries with yardage and usually cut my scraps into strips and make "jelly roll" type quilts. I seem to have less waste that way.