The original painting frames aren't very good. The most
obvious problem being that the texture warps as the perspective changes
There are two sets of the improved versions.
To download the ones that overwrite the originals, click Here
If you're making your own FM, and you want the player to be
able to see the back of the frames as a solid texture (e.g. like the painting in
the 'Crystal Eye' puzzle in Shipping and Receiving), click
Here
There are installation instructions in the .zip