Original Emmett Kelly Circus Collection

Can anyone help as to where I can find out what a few of the Emmett Kelly's I have are worth:
1987 6034/15,000 Emmett painting on a canvas
1992 541/15,000 Emmett playing a piano "OPROMISEME"
1989 1083/15,000 Emmett putting a ring on his bride

I have a whole bunch of Emmett Kelly Jr.'s too:
Spring
Emmett with a dog lying by a fire
Pharmacist
Fireman
Mailman
Bowler
Hunter
Chef
Painter

Please help, anyone, as to what any of these are worth.
Is there a website I can find these on?

Thanks for your help!!!!!