Designer Needed for Website Banners

i am building websites and i am looking for a designer to deign me banners for those sites i create.
the banner sizes i will need to created:
home page banner size: 1920 x 450
category banner size: 550 x 350

please write me your price per banner.

i am interested only in the banner design, please send me one banner example you have created.

thank you

Ori