Design for an A4 Promotional Flyer (2 sided)

I need a design for a double sided A4 promotional flyer for my business. I will take care of printing, project is just for design. I have a hand drawn example with the type of thing I am looking for, with a designer to add their own touches to make it special. Bidder must be able to begin work immediately, and offer unlimited amendments until I'm happy with the final product.