Make a color combo type feed. Ex: 3 rows of blue 3 rows of red ect. Also go on the app pics art and edit contrast settings ect. until you find the perfect one and then write them down and copy them every time you edit a photo it'll look clean. I suggest getting your photos from tumblr but try to make sure that none of the pics are over used. Hope I helped
you should make a black and yellow feed. considering everyone uses red and blue. those type of profiles grow in popularity fast. you can make your own one of a kind filter using the app "magic hour" so you won't kys trying to finish the feed