you are lacking Feature Pages, and are therefore not yet approved by
Release Engineering to be composed for the Beta.
Create your feature pages and drop a note on both the fedora-spins
mailing list, as well as the fedora-advisory-board for trademark
approval, after which you can continue to move to the rel-eng mailing
list at lists.fedoraproject.org
to get your final approval.
Most appropriate would be to do so in advance of the Beta Feature
Freeze, coming up August 19th.
Jeroen van Meeuwen