I read your first post searching for a pixel artist. Firstly, keep doing what your doing, maybe use placeholder graphics for the moment.
I'd offer some help but I do have a few other projects on the go. Happy for you to send a PM/email on anything urgent and I'd be happy to look at what needs to be done.
Do you for example have a complete list of objects, sprites, backgrounds that need to be drawn/animated including styles/dimensions, if so I might then be able to select and do some things over time.
Again don't panic and good luck with your project