Violet: that turned out very blurry, maybe you can try downscale the 32x32 octagons instead?

I also think that the vague "octagonal Devan temple with plants" theme is cool. It's like a more interesting version of Turtemple. It's also not intrusive and leaves quite a bit up to the player's imagination, like Kansas. Which is better than outright saying "this will be a ruined city"!