These are the NG textures of the submarine floor of the level "Sleeping With The Fishes", from the DLC of TR3.
These textures are many more of the original, because they offer a lot of possibilities.
They come in 128x128 and 256x256 pixels.
If you use them, please, credit me.
HighTech / Lab / Water
Tomb Raider The Last Revelation / Tomb Raider Classic
128x128 / 256x256