I think you've gone a little bit
!
I think that graphics should be commented in the way which explains how the game looks not something like: "The graphics were good at the time, but aren't very impressive by today's standards". If you want to explain how the game looks like, you didn't say anything with this (I know there are screenshots, but those ones can be taken from the best parts of the game).
So you say clearly: "Graphics are old CGA, but I liked it the way it is. Because if graphics are better, the game will lose its preciousness."
It should sound simillar to this above.