A little late getting back to you here... Flower colors for various mosaic aloes (partial list, info mostly from the DG, not to exclude other color combinations):
somaliensis - pink
djiboutiensis - reddish pink
elegantissima - greenish yellow
erensii - pink
harlana - dark red or yellow
hemmingii - pink
jucunda - pink
mcloughlinii - pinkish red
parvidens - pale pink
peckii - greenish or brownish yellow, with green or brownish lines
pirottae - yellow, orange, red
suffulta - orange-red
