Cavan1 is correct, you need to set up a personal page
When Wincustomize used to not accept walls for the general gallery, they were rejected period - they didn't show up anywhere.
Now WC pretty much doesn't reject walls unless the rules are violated (copyright, content, rips, etc).
However, a wall not rejected still has to met some rating standards before it will be in the main gallery or it moves to your personal page. I believe 1.5 stars is too low for the main gallery