This is the worst artwork I've ever seen.
The graphics are very bad. They need to be much better.
The graphics still look bad, but they're not the worst I've seen.
I have seen better graphics, very mediocre.
The graphics are below average. The graphics should be improved.
The graphics are OK. Next time, I would like to see better.
The graphics look pretty good. A little polish could go a long way.
The graphics look really good. There isn't much to complain about.
The graphics are great. They're the best I have seen in some time.