My anemone is so light and the body and oral plate is almost translucent. Color is wash out. The color will be much more intense with brighter light. Also my anemone have tiny, string like tentacles, the smallest I have ever seen. I know that Gigantea can take a lot of light. I know that increase light will get it to be much more colorful.
Your new anemone seem very healthy and looking great, however if you give ti more light, it will be much brighter.