Your photos are good enough to start a photography page. With any luck, your photography will improve almost every time you pick up a camera, for the rest of your life. It is always a work in progress. And it will change as your interests, education and experience change you.
You can get a Flickr page, or a 500px page just by signing up, you don’t have to get a page that costs money unless you want to sell your photography services, and even then there are ways to do it inexpensively.