Hello Boss,
Designing a website mockup is an easy thing to do, but designing a good website mockup is not that easy because it requires time and skill. Don't worry about that, you just found the right person who is perfectly matched for the job, and for a very reasonable low price. Since this will be my first project in freelancer.com, if I get hired, I will put in all my energy to ensure that I craft a very nice professional website mockup. Well, I hope that you will consider my offer. Please feel free to negotiate with me on my rates. I am open to any queries that you might be having. Thank you