Free WordPress theme or Theme from scratch?

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Wordpress Theme for Restaurant

Hi I just registered domain name for one of my client running restaurant. The client asked me to provided him few samples of design to choose one from it. I had glance to couple of very beautiful themes but not sure about the future update of these themes. I am looking for theme to have mobile version and future regular updates free with good support. Its worth to mention the theme should be mix of services and food.