Festival Advert

Hi there,

We're sponsoring a local festival and need to do a small advert. My wordswag isn't up to scratch! I need an ad which needs to be this size; F: 1/2 PAGE PORTRAIT 127mm (w) X 335.5mm (h),
G: 1/2 PAGE LANDSCAPE 259mm (w) x 164mm (h)

I've done a basic but it's not the right size and I can't edit. I've attached a copy. However I'd prefer something a little better. I can also add the