I don't think you can gauge sales based on months in general. Except perharps for the top sellers get better exposure due to their placement in the search .
I would think it's more to do with what your concept and content is in your portfolio. eg. obviously if your images are seasonal you would find more dls or views a season or two prior. However, if your images are mostly travel , industrial, conceptual,etc... like my images, there is really no season or explanation or timing.
Editorials though may have a certain timing. eg. my best seller of the little boy in the CYCLE FOR HEART race, that always gets me 1 or 2 dls repeatdely during the summer when this event recurs.
My sales are on the low site this month at DT too. I am sure next month will be better, it just an up and down. My tip would be for you to upload more images. If you have a more diversified portfolio, then you don't see so strong up and downs from month to month.
It's hard to have great sales in January! Some portfolios with high exposure can have of course... Your sales are almost the same as your online files, which is not bad at all! You have to have a big portfolio to start having regular sales... Your images are fine... Keep uploading & try different concepts as well! Cheers :)
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