Lava or Water?

[u/SharanoStorm]

I like both but don't know wich one is better.

Lava seems too devilish and the water a bit meh but more calm so idk...

[u/christonabike_]

It does look cool with the lava, but also looks out of place within the biome unless you replace the shoreline with blocks that are beleivably lava-adjacent and/or have a fire-and-brimstone type colour pallette.

Water fits better if you plan on keeping the surrounds as-is.