Thanks! I was thinking a bog of really gross water, but using it for liquid mercury would be fun.

This looks a lot better to how you had it set up previously. Is the last liquid tile meant to be liquid mercury?

 Thank you! And respectively, they're short grass, rocky dirt, and rocky sand.

I like grass (most of all), flowers, sand and rocks, very nice job. Though 1-2, 1-4 and 4-2 make no sense to me.