Shoothing some products shots (clothing) in 1 HOUR for a non-profit that I'm sort of a part of. Need urgent tips, tricks and help.

Hi,So in about a very little time I'm heading out doing some product shots of some clothes for a non-profit I'm helping with. We're shooting t-shirts, hoodies and other clothing stuff for Metalheads Against Bullying, and I need some super quick tips and help to make this work.The reason for it being so urgent is because the weather is nice and sunny, after a week with pure shitstorm and rain. I don't have a studio, so I have to rely on the weather being nice and natural light.The gear is as follows:Canon 80DSigma 70-200mm F2.8Monopod and TripodWill be shooting by an old building near where I live, called Melkefabrikken (Milkfactory). Here's an image.Anyone have any quick tips and tricks? This exact thing is new to me, specially trying to get the brand and clothing out. Done a little portrait photography which I really enjoy.My girlfriend also agreed to be a model, so have that covered.Much appreciated! via /r/photography http://ift.tt/2wT3Fps