I need a header for my Mailchimp email newsletter

I require an eye-catching header to drop into the top of our regular newsletter.

The main body of the email features portfolios of our photographers and remains the same for each email with only the photographers changing.

Our previous email newsletter is attached.

I am a stock photo agency so you can use any of our library photos which specialise in Food and Drink.

We are running two promotions:
1. Offering a free image to new clients
2. Offering a free gift of a Graze snack box (from www.graze.com)when a client spends more than £75 on photography from our website

The objective of each email is to:
1.Free image to tempt clients who haven't purchased before.

2. Offer the incentive of the Graze Box to encourage clients to spend more with the agency.

Our website is www.foodanddrinkphotos.com

We send our emails using Mailchimp. A jpeg can be dropped into the email header.