Click "Campaigns" at the top of your Wishpond dashboard

Click the blue button titled "Create a Contest"

Select "Photo Contest" from the drop down menu 

Customize the contest page and entry form for your campaign. Once you have finished scroll to the bottom of the page and click 'Next'.

You can then choose the settings for the contest. First you can name your campaign and choose where it will appear. Then specify the entry settings, you can choose the entry method, share messages, and photo upload method you would like.  

Then scroll down to the gallery settings, this will include the voting options.  

Next you can schedule the contest and choose the entry/voting period. 

Then click 'Next' at the bottom of the page again and your contest will be begin at the scheduled time.