You won’t be able to see files pending review for usually between 2 to 4 days, depending on the size of the queue.
The way to see your pending images is by logging into the main site, in your Account find the link ‘Attach Releases’. Thumbnails of your images will gradually appear here.
Please note, all pending images appear here, whether they need Model Releases or not. Images which do require Model Releases won’t go online until the Releases are attached to the relevant files.