First 50 photos took around 3 years and second 50 took less than 2 months. This is just because of the comments given for rejected images. I have improved my quality as well as shifted my thinking from artistic photos to commercial photos. Last month I uploaded 14 editorial photos from Diwali festival of India. I am not sure how many sales will be generated but I uploaded as subject seems salable. These are the two images of crackers which crossed the psychological figure of 3 digits.