Such wonderful and contrasting lines all in one image. A round frame with detail, contrasting with lighter arcs and straight lines in the Susandiane. They all complement each other so well and are composed so nicely. It was a favorite of mine the very first time I went through this massive set of contributions. Congratulations.
No doubts about this meeting the challenge and the use of an old tyre to frame the boats works really well. The focussing seems spot on. I'd like to see a few less things in it though, it seems a bit 'busy'.
Very nice...different from the usual. I can't help but be distracted by the mess in the upper right corner. Could you have cropped the right side to eliminate this? Just a thought, perhaps you tried this and it didn't work.