but for contributions such as images you need to be at Junior rank because Newbie rank will not be able to display images unless Newbie is already a copper member.
From the visibility perspective, even images and stuff are visible to newbies, it's just that they can't post images.
To @OP, there are no rank-based restrictions in this forum other than the ability to wear a signature and avatar and show images in your posts. As you grow in ranks, you will be allowed to have more characters in your signature, and also be able to have a design in it, which isn't allowed for lower ranks. Once you become a full member, you will be allowed to wear an avatar, which isn't allowed for lower ranks.
Other than that, the visibility factor isn't a problem because even if you don't have an account on the forum and visit as a guest, you will still be able to see everything, but only in watch-only mode because you can't post without an account.