Snapseed is the best editing tools for mobile photography.it has been many option like crop,white balance, lens blur,curvs itc.if you make a dslr photo in snapseed you can try to lensblur option.And if you need a dream then try to black &white. You can add a picture with another picture than u go double exposure. You need more bright,contrast,sharpness you can try to tune.you have more colour go to curvs. However i aslo say that snapseed is the parfect apk for mobile photography. And It’s a mini dslr for poor users!