iCloud space not updating after deleting photos

I'm signed up for the 50GB iCloud subscription. I had about 40GB of photos uploaded there, which combined with my device backups put me at the size limit. I backed up my photos to an external hard drive last night and then deleted the vast majority of my pictures from the Photos app on my iPhone 6 Plus. I received a warning that the photos would NOT be sent to the Recently Deleted folder, as there was not enough space, and I accepted. There are now only around 500 pictures stored on my iPhone, but when I checked this morning, iCloud is still showing as having 40GB in Photos stored, and no space left on my iCloud drive. Rebooting my phone did not resolve. Does it just take longer than I'm expecting for iCloud to update, or does deleting pictures out of your Photos app no longer also delete from your iCloud?