From the first Wrestlemania in 1985 to the mid-90s, the PPV posters were very basic regarding the designs. It slowly improved and, without talking about art, we could start to see the beginning of real efforts to have nice looking and attractive posters.
Without being the worst, the main WWE pay-per-view event's posters have not established very high standards; as you can see in the opening picture, the poster for Wrestlemania III (considered as the milestone of modern pro-wrestling) doesn't have a very outstanding design. The worst posters of them all have been for the early Survivor Series.
Until 1997, there have not been real pieces of art; we could talk about primitive and/or transitional art. From the early Wrestlemanias classic wrestling posters to some interesting visual artwork, let's see where it all started.