We don't have "Beginner" sections, either for photo sharing or for equipment, because practically nobody but people who consider themselves "beginner" would go there. Rather than thinking you need to go to the "Critique Corner" to get criticism, try posting in the photo sharing area most appropriate for the content on your photo, and explain what you're asking for (technical suggestions, composition, processing, . . . ) in the way of answers. Some people will disregard the specifics of your request and give (what seem to you) completely irrelevant answers - just ignore them (or thank them for responding, without addressing the content of their responses) as they ignored the specifics of your request if they're too far off base. But they may offer suggestions in areas you hadn't thought about, so at least glance through them.