Hi Spacey,
It might help to have this at higher resolution - it might be your camera (especially if it was attached to a phone), but is more likely that when you've made the file smaller, you've compressed the JPEG so much that it's lost detail. If you still have the original photograph, reduce it to abou 700 for the longest side. In most image processors, when you save you'll get an option for quality. Choose something above 92%, depending on the resolution of the original shot.
If, however, it's because you've used a phone camera, it might be best to borrow a camera.
