My friend has had a Rose BTA for almost a year now and it looks pretty much identical to yours. It is like with all livestock, some are brighter or more brilliantly colored them some of their brethren.
Another thing could be your lighting or water parameters. The same Anemone could appear different under various lighting methods.
If it was in your 90g with the 20,000k MH
you have it might very well appear brighter and more "pink".
I am sure some of the other more esteemed members may have further input.