Hello,
Yes, our creative designers can help you in designing an elegant, professional, classy banner with variations for your agricultural business called "John's Backyard Farm" on facebook, twitter and google+ with the possibility of YouTube as per your requirements as well as preference.
If you will award us the project, then initially we will provide few variations as per your requirements and then we can do modifications on the selected once (if you need so) else we will provide more variations until you satisfy with our work.
Have a look at our previous done logos:
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Have a look at our previous done sites on different sector:
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Waiting for your reply.
Thanks & Regards,
Meheli Chaterjee