Nice looking figure.
The recent E&S and GA releases are really well done. If I still did USMC figures, I would definitely get these.
Marines use Desert MARPAT, not AOR1. It's a slightly different pattern, and different colours. Although in this scale, and with fabric printing issues, it can all look the same.
AOR1 was based on MARPAT Desert, which was based on CADPAT AR(Arid Region). Even on this example, the colours aren't quite right, but it gives an idea of the differences.