Low key would be bland and generic.
R2D1 & 2 were cool because we rarely have a true western experience in a game. (video games often like to incorporate fantasy and sci into everything) But there have been plenty of solid western movies. This wouldn't stand out over deadwood, or unforgiven or stuff like that. In fact there are scenes in RDR2 that were straight up ripped from other westerns.
The Train Robbery Scene in the third chapter is literally clip for clip stolen from the Brad Pitt western about Jesse James.