In his book on Cezanne's composition, Erle Loran writes about "the funnel effect and the hole in the picture." Funnels and holes are endemic to canal paintings. Cezanne avoided funnels and holes by spanning "construction lines" and warm planes that pulled everything to the picture plane. I might be just "tasteless" (Loran's word) enough to not hide the funnels and holes as much. I like the front to back depth of a canal scene. A side view of the canal is not as interesting. Maybe I should publish the image upside-down. Then it wouldn't look like a frozen canal.