Ron Williams JLA / Marvel - help needed

0

I picked this up from someone on eBay, and the story is that it was bought at a Ron Williams art sale. The piece is interesting because there seems to be some JLA pencils on one side, and 1/2 of a 2 page Marvel painting on the other. I can't find any signatures, so I'm hoping someone might be able to verify this actually is Ron Williams, and maybe let me know what JLA book the pencils are from (if they were published).

Also, if anyone knows who owns the other half of this, I would love to know! The Marvel side is awesome, and I would love to own both halves.

Thanks for any help...and here are the pics:

This is my work from the mid 90s. The Marvel piece actually has 2 parts. It was artwork I lost in a storage in California.

im doing work with Marat Mychaels currently. You can find me on Facebook and Instagram: Ron C. Williams.