Rowboats, second chance

I really liked the tumble of rowboats near Granville Island back in 2004. I painted an 8x10" study in 2013, and I am finally getting around to doing the larger version. This canvas is the 20x24" where I first tried to lay the boats over a sunset. I am planning to use palette knives and acrylic again, hoping the cool wet weather will help make that successful this time.
I used black gesso to give me a fresh start. I sketched with a blue watercolour pencil, so I can make lots of corrections on those boat shapes. I see some already, e.g. the missing boat on the right side. 

The low placement of the row of boats left a large black space above, so I added a water horizon and moon with reflections. I used white PanPastel to try out the hightlights as it is easy to modify with a moldable grey eraser. Good so far...
I took the painting outside to spray the pastel with workable fixative spray. Oops - the can needs a lot of shaking to prevent drips. Then I knocked the sprayer end off the can had a toxic air issue in the studio. How much other damage can I possibly do in one day?
Well, I could try knife painting on precise shapes instead of as an abstract form or background. Then switch to soft brushes to fix the issues caused by the knife. Then I might decide that I really prefer oils and do the next layer in a grey scale instead. 
OK, oil wins. :)