3 Different Postcard Designs

Reselling this project: I need three great postcard designs for a high-end company. The design must be professional, clean, crisp, and not busy. I am very picky with designs so please do not waste my time with unprofessional work. Front and back must be designed on a standard 4.25 x 6 size postcard with room left for the mailing address. Please attach in your PMB previous work or your bid will not be accepted. If I like your bid, you MUST be willing to submit a mock postcard design for the front of the postcard BEFORE I escrow money.