Respected Sir/Madam,
I understand your requirements thoroughly. As a graphic designer, I am really interested in your project. On freelancer.com, I have worked on creation of some custom designs, flyer, smartphone covers, etc. Please check my profile at the link given below.
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I assure you quality of work and promise to work according to your guidelines. I am ready to show you mock up following your requirements. Please consider my bid. I am waiting for your positive response.
Thank You.