Thanks to everyone who left suggestions and feedback on what to do with these pieces:
I made some color copies of them so I could play around - tried Jill's suggestion of cutting them and patchworking them into a single piece, tried Jen's suggestion of adding a word that spans all three pieces, tried covering them with different washes, and laying them on different backgrounds.
I wasn't getting any closer to making a decision.
It was Terri's comment about found objects and "something on long stalks" that made me grab these dried fronds that sit in a vase in my studio. Suddenly I felt inspired.
Here's where it stands right now:
At the moment it's just taped down to a piece of shiny black poster board (hence the reflection on the left side), but I really like the overall effect.
I took the plunge and glued the fronds to the collage.
No more waffling.
Commitment is good.
It is currently taped to the dining room wall, and this is probably where it will stay for a long time. One wouldn't want to rush the choosing of a more suitable mat and frame.
We'll call it judicious waiting rather than procrastination.
Anyway, your comments were so very helpful.
Sometimes I'm great about responding to comments, but this was not one of those times.
I do not wish to appear ungrateful.
Your presence here means an awful lot to me.