I'll never be a fan of the tortoise shell pattern since it seems that everyone under the sun has churned out something like this over the years. That said, I hooked a colleague up with this frame scheme on a Five 3.0 and they looked very classy and sophisticated. I'd probably never buy it, but if you are partial to a tortoise design, this one should suffice.

tortoise is for the old people and females. boring colour , very very normal

I'm not a fan of animal patterns but my friend has a pair of fives with this color and at least on her, they look great. It's goes well with her skin tone but also, they seem to look better in reali life than in photos.

I have this on the eye jackets and it is an amazing frame colour, its another one of the animal prints that i love. it came in quite a few different frames back in the day but i think it looks best on the eye jackets and moons.
looks great in the sun because it goes almost see through.
a great pattern with nice rich browns.

I have this on my Moons. It took me years until I touched a tortoise frame, because I thought they looked very tacky. However upon seeing it in person, it's not too bad. It's an amber marble pattern, that you really have to see in person.