Little Corona del Mar (Traveling Burnside Project)

The Lensbaby Burnside lens arrived yesterday. This morning it was low-tide, so I took the Burnside and the Velvet 56 to Little Corona del Mar (Newport Beach, CA), to one of my favorite low-tide places in Southern California.
I tested both lenses facing the same subject at all settings; with the burnside it meant using apertures F16 to F2.8, and with each aperture I used all 4 vignette settings. On the Velvet it was just the various apertures I tried.
My observations: my frame contained some cloudy skies, and with F16, F11, F8 and F5.6 the maximum vignette added too much darkness with the Burnside. I liked the maximum vignette with wider apertures, because what was darkened was also blurry (last two images).

After the first set of images I recomposed, because due to the wider apertures and the vignette, only the middle part of the image stayed focused. I wanted the arch to stay somewhat in focus.
Out of all the settings I liked the F4 aperture, because it placed the focus on the arch and a bit on the rocks, but not the tree. And out of the two vignettes (3 and 4), I preferred the widest one, because it gave the whole image an eery feeling. Without the clouds though I would not have used the heaviest vignette. Here are the two out of camera pictures with F4 and 3/4 vignette settings.

After checking out all the pictures I took, I picked my favorites and post-processed them. The first two were created with the Burnside, but I liked the tighter frames taken with the Velvet. I used Lightroom and On1 Effects for the processing.