Z-depths

[GoodMorning]

I'm touching up the aesthetics of a new enemy, but have managed to (by accident) place some images in a chain under the Creeper, but above the terrain.

What height, exactly, is the Creeper drawn at?

For that matter, what about the other elements? (I seem to recall an early CS map with an image between the blue part of an Ore mine and the brown, so someone will hopefully know).

[planetfall]

If memory serves...

terrain = 2
creeper = 1
powerzone, blue ore bits = 0.95

[GoodMorning]

Thanks.