The Xbox version is way too dark, or at least my copy is. It looks horrible. The Saturn version, when you kneel, Arthur's knees do not go behind the blades of grass. BLASPHEMY!
it's not just your copy, it's everyone's copy.
the part that's too dark is, the distant backgrounds. it's the same with the PS2 version. this is because both Xbox/PS2 versions are actually the PS1 version from Capcom Generation 2 released in 1998.
the Saturn version didn't have this problem of dark distant backgrounds (it had other problems though such as being at a different resolution so everything is 'fatter' and some of the right & left edges are not visible where you are at an edge.
the grass 'depth', it's ability to obscure parts of Arthur, whether he's kneeling or not, is only present in the arcade version. i wonder if that was a bug though.
most of the games in Capcom Classics Collection vol 1 are just the CG2 games together.
i.e. the Now Loading screen in the SF2 games were from the PS1 CG5. they load fast on Xbox though.
Final Fight and Forgotten Worlds were newly ported just for CCCv1