Nice, but the anemone is disturbed/stressed? When an anemone is contracted, its color will be more intense and that includes the colour of its verrucaes.
As far as getting mertensii for your tank this is what I would do if I don't live in West coast. I would look for brown and green carpets(some time steel blue but rare) in LFS often. Mertensii often got mistaken as haddoni so you may get lucky. Most faded away or died because no one would buy greenish / brown carpet
And if that fails, ask your LFS to order you one. The chance is better if LFS does direct shipping from the collection site.
And if that didn't happened after a few months, then may be a group buy with direct shipment from overseas.
I do have contacts, that could get you the mertensii but the issue is strategic and high $ cost. By the way, I do not have financial, business, or personaly relationship with the collector.
the shipping and handling is near $12/kg and minimum of 100kg before you get any breaks in shipping and handling, thus make sense to do group buy. Few people have a system large enough to accept 8 or 10 boxes of anemones all at once.
One of you would coordinate a group buy, hire a broker in West coast, and repack your anemones, then ship them to you after been through inspections. This is not cheap, even here in West coast, and you guys are even further away. A shipment for me is normally around $1500 + broker's fees. A broker is needed f you don't want to manage the paper works, inspections from custom agents, Fish and Wild Life inspections, and some may required to go through Homeland Security office as did in my recent shipment. This process could/may take up to 24 hrs while your anemones are sitting in the cold warehouse.
I get emails some times and with passionate plea from anemone keepers for mertensii or gigantea or ...I wanted to help, but as one could see that there is no easy and fast way. If I could put a mertensii in my handbag, I would do it for you on my return trips
Cheers