I did a quickie survey of winners from various past monthly contests and divided them (somewhat arbitrarily) into categories.
The categories are somewhat fluid as in: Is an image of a barn in a field categorized as a landscape or architecture photo? My criteria was the size of the barn in the image. If it was large, I would call it an architectural image if it were small, it would be a landscape.
Anyway, if anyone is interested, here are the categories of images and the numbers of images from those categories that won for the last 76 monthly contests over six years!
Landscape/Seascape: 27
Portraits (formal and informal): 13
Animals (non-pet): 7
Animals (pets): 2
Birds: 6
Flowers: 3
Architecture (includes bridges): 8
Macro: 3
Miscellaneous (including art and street): 7
I wonder if the winners reflect the numbers entered in these categories but, that would be a large job to calculate...