There are anothers nice and fun Challenges from the series MySTARPhotography** you may be interested in:
MyDailyColor, MyNegativePhotography,
#MyAnimalPhotography, #MyInsectPhotography, #MyLandscapePhotography, #MyCityscapePhotography, #MyArchitecturePhotography, #MyStructurePhotography, #MyMacroPhotography, #MyFlowerPhotography, #MyNaturePhotography, #MyObjectPhotography, #MyToyPhotography, #MyArtPhotography, #MySplashPhotography, #MyMonochromePhotography, #MyPanoramicPhotography, #MyPeoplePhotography, #MyFoodPhotography, #MyMobilePhotography, #MySportPhotography, #MyRandomPhotography,
#MyNaturalGarden, #MyNaturalProduct
In additional #MyStarVideo