Since mid last year, I have a large disc space on ideasforgardens.net hosting, where you up load your photos.
You and all others can upload as many WPG projects as they wish, the more the better.
I pay a fixed annual fee for that.
Band width is used up by visitors to a site or forum. On Flower Genie website (which went off line last week) most of the bandwdth is used up by those who download the Flower Genie software for evaluation. If the allocated bandwidth approaches the limit then I have to purchase more.
Again don't worry about uploading your WPG projects. They are very small in comparison to a Flower Genie download.