Nothing wrong, as some games indeed are missing from the lists.
Just upload as next game in alphabetical order and we'll sort things out.
But before uploading I would suggest uploading one (or few) covers to Mediafire or Box and then linking to the boards so we can check them and tell what needs to be fixed.
As our quality requirements are very strickt and we are buzy, if the cover submitted to the site directly does not meet the sytandarts it will simply be deleted and nothing of it is never heard again.