I don’t have access to the webapps / the webapps are not accepting more pictures.

Have you been “approved”? Please, remember that an Accepted status is not enough to access the webapps. If this is the reason, please, be patient, your application is still being reviewed.
If the webapp is not accepting more pictures, this is probably because the category is full and we are reviewing the existing ones. The category is not closed, though, as we might reopen it if the existing pictures are not valid. If you are unsure of what might be happening, visit our project-specific subforum and a member of our team will clarify!