The download includes installation instructions, a changelog and permissions file, and a copy of the Gibbed tool required to install it*. This means that you don't have to wait around for a while until all the textures load every time you launch the game! It is also very easy to uninstall in seconds. Rather than use Texmod, the TRA HD Overhaul is installed directly into your game's installation directory. I'm not a fan of HD mods that drastically alter the appearance of the game, and if you check the screenshots below I hope you'll agree that the overall aesthetic has been preserved. One of the most important aims of this project is to keep the new textures looking accurate to the original ones. Many, many hours have been spent on this mod so far and I anticipate working many hours more!
In Croft Manor for example, most textures are around 128x128 pixels square, whereas my new textures sit around 512x512 to 2048x2048. This is a work-in-progress project to bring Tomb Raider: Anniversary's textures to a much higher quality.