Liza Tuktamysheva https://www.instagram.com/p/CBN_phXHS4y/
Mmmmm. Never seen that before.
There was no sign of it in the third photo of this album she put up a month ago:
https://www.instagram.com/p/CACndEuAvNU/
So, it is either a very recent addition, or else it is a fake tattoo.
I am leaning towards the latter because, although I have found one other photo of it (photo 3 in this album), that photo was obviously taken on the same day as the photos you link to, because she is wearing exactly the same outfit.
We'll just have to wait and see if it appears in any future photos, where she is wearing something different. Then we'll know for sure.
Incidentally, while looking for recent photos of Liza on the profiles of people she has recently been pictured with, I found out that her long-term partner in crime Sindra Kriisa (EST) has a tattoo on her arm:
https://www.instagram.com/p/BzZ6X9sol6G/
...and Betina Popova has a few tattoos:
Right Side
Right Side
Back
Left Side
Left Side
Left Side
(Now I'm just waiting for elektra to stumble across this post... )
CaroLiza_fan