The one with the wrinkled leaves is not getting enough water. I had a phal do that to me, turned out to be under watering. Once I gave it a good soak for 15 minutes, the next morning, the leaf was back to normal.
I see nothing wrong with those leaves otherwise, they look pretty healthy to me. In fact, I'm not sure I would call them dark green. I have two phals that have naturally dark green leaves, they can look black in some lighting. I'll get a pic for you side by side of my dark green phal and a regular green phal so you can compare. I think you will find that your phals are perfectly normal.
Creative use of a rubbermaid tub, btw.