Those look like a Silver overtone mixed with subtle Rose. The luster looks excellent- congrats on some very fine pearls, Lucy!
I *love* recommending Gem-Quality Freshwater pearls (call them Freshadama, Elites or Gemmies) to our customers; especially those trying to decide between Akoya and FW. Overall, the Gem FW have better value, and are much less susecptible to daily wear and tear than Akoya pearls. Great choice!!