The spoked wall art would look really fun. Your bathroom has excellent bones!

Have you considered covering the wall with tin ceiling tiles? I did that in a bathroom of mine and the effect is phenomenal. Make sure to paint them with rustoleum first (I used the silver spray paint) to protect them.

If you want a picture let me know and I'll see if I can figure out how to post one.

I would love to see the Tin tile pictured

I would love to see black and white framed artwork/photos/ objects. I think it will complete the look without seeming too "decorated"

Not the greatest picture but should give you the idea.

The frame around the mirror is just moulding painted rustoleum copper with some gold paint sponged over it for some depth. (I note only because I'm particularly found of the contrast between the copper and the silver).

Also attached another photo of something I liked - I'm pretty sure the mirrors are just ikea ($1-2 a piece) painted gold.

If you'd like I can post other ideas I've saved elsewhere. I've gone a little bonkers on my redecorating / updating kick.

Well here they are whether you want them or not...I tried to keep some of the info in the photos to give you a clue where to find the details. I can also post links if you want info for any of them. The farmhouse / industrial description makes me think: wood.