Which is the best way to improve your photography? Contrary to expectations, it is not through buying the latest or the most expensive equipment. Nor is it going to be possible by merely studying pictures created by others and copying them. This way you will never create your own style and leave your mark on the picture. Is image quality everything? No, please don't get fazed by pixel counts and resolution figures. A lot can be achieved by critically evaluating your earlier images and honestly examining how they can be improved.
Remember, at the end of the day the only thing that counts is the final image quality. If the final image quality doesn't make the cut, all the pixels in the world cannot change it.