This skin is my fictional creation, which I use in my youtube videos (youtube user Belgeode). I am uploading it by popular request. It is loosely based on the Kazakhstan Su-34 fighter/bomber skin in use IRL, with a fair bit of creative license by myself.
The name Dyavoly means devils, and it was my idea for an "elite carrier based fighter unit" for the Russians, similar to US Navy conventions.
This version contains a green backdrop to the devil logo, which in my series I use to denote air to ground tasked jets.
Unzip to the DCS World > Bazar > Su-33 folder.
That's it. Happy flying!