Hi there, congrats on the AOR.
Everybody gets an AOR whether they submit a complete package or not.
*if they wanted your package returned, they would had done that by now*
The next steps are AIP, DM and Landing Date so you can go for an interview.
Some people get AIP and DM at the same time (completed package) Some others (even tho they submitted a complete package) get AIP and then DM.
But you sure are on your way already
and in no time you'll have a PR card
In that AOR you got your UCI# and your Sponsors as well, now you can check your status online (eCAS)