Hard to decide

First time I use my new wide angle lens, so a bit difficult, which one shall I publish.
I decided for one extra. My main shows the frame at the front of a trailer seen through the frame at the back.
The extra is a hotel for insects, several frames with different kind of "rooms", seen through a frame that I held in my hand (two pictures, hand replaced, and then PS helped to copy a handless part to the other picture).
I think this meets the theme of today's challenge, frame within frame.