hey whats the situation with the art its been awhile and not a peep just if something is happening
Ask for a partial refund until they start becoming more responsive and sending you the artwork you paid for. I am sorry, but it sounds like a bit too long you have been waiting for no real progress from them.
Lack of communication is a big red flag to me, even if the finished product might be good, its alot of money to basically throw and possibly not see anything come out of it.
I've been dealing with some similar stuff for a comic I commissioned, and I am about to just ask for a refund so I can either get my money back from it or put it towards another artist to do it for me. This stuff ain't cheap, I have waited almost a year and only have one page for my comic so far and I am already kinda concerned about it. And I had already done a comic from them before, and it took about a year for that one altogether.