Trying to sell Disney cels!

Hello! I work for a thrift store and we just received what we believe to be two Disney Cels one of Prince Phillip riding a horse and one of Jiminy Cricket in a Sherlock Holmes hat. I'm wondering if anyone can give me tips on authenticating these pieces and what the best way is to price and sell them. Thank you!

send pictures to an animation art dealer there are many on the internet pictures will give them a idea

Thanks! Do you know how I can find one?