Preview Package Photo In New Pre-register/pre-order Galleries

Hi Tim,

Just setting up my first pre-register/pre-pay gallery and the preview graphics are too to visually see what is in the pack.  If you try to expand the image on your phone, it's all tiny and pixellated. 

I notice if I upload the image twice, you can click to see "more photos' and the 2nd image is clean and clear, but i'd rather the first image to be easier to see.

Can you tell me what code/ parameters need to be manipulated to get a larger image?

In my regular post-pay packs, I have html code in my image description to allow a nice big clean image, but this doesnt work with the pre-pay.

Thankyou.