Too bad! Yes, that's how it goes these days. You get (well, buy) a time slot. I don't like it, but it can't be done otherwise.
Btw. here's another one I'm working on (Hunters crossing shallow lake). Saw this scene in real life the other day with the empty expanse of very dark shallow water and the sandy islands and wanted to mimic that. Trees will be replaced by deciduous, etc.