Could you start a village down here? (and other things)

I'm pretty new to Minecraft, so I'm not sure how weird this stuff is:

Dirt and lava at 200 / -54 / 300, like the title says, could you technically start a village down here?

Nearby is a trial chamber with one (almost two) mob spawners merged in it

Lastly is the smallest mineshaft I've ever seen

All are located underneath this cove

Seed: 9058007704254504711