Need a designer / vendor for a new Marketo email tempalte

Does anyone have a resource they have used and were happy with in designing a custom Marketo email template? I am not happy with the out-of-the-box email templates from Marketo and wants to create a few templates with a lot more graphics capability. Unfortunately, I am short-staffed from a marketing and design standpoint and don't have bandwidth to do this in-house. Any recommendations (of if you have any templates you have used and are willing to share)  gratefully accepted!