Black/White With Red Filter

Finally ordered a red filter for my lens online.
Shot some years ago with my old Pentax and liked them.
Got my contact sheets back last week, took four shots with
the filter, just to see how it looked, and they came out nice.
Cypress trees on a lake with clouds in the background.
Red brings out the clouds.
Went out in my boat again this week, shot a couple of rolls,
and used the filter a little more. Low light early morning conditions
in a boat make it more difficult, can't use the tripod if there is wind
or chop. Sent out the film today and I will definitely continue to use
the filter.