I was trying to fill a gap in the market for cool workwear! Hopefully it fits the bill. I chose the Weston Fabric because I am obsessed with texture and the jacquard weave of this one had me sold! I loved working with it, I think the slightly spongier handle was quite forgiving and would be great for a beginner sewer to work with. I also used your Porter cotton for my other shirt sample and that was super crisp and lovely for a more structural look. 
My tips for selecting fabric for patterns would be to follow the designers recommendations in the instructions (boring, I know). There's a reason I'll never suggest quilting cotton for garment designs. 

Thank you! There are so many things that influence and determine my designs. Ideally, everything I make would be very drapey and asymmetrical with interesting details - think Yohji Yamamoto, Ann Demuelemeester, Rick Owens. But I'm given the challenge of making something interesting yet commercial enough to appeal to my market, that can be graded into numerous sizes, and explained and illustrated in clear fashion. And you also want design garments that people want to sew more than once! It's tough striking that balance between all those factors, so I am finding myself more and more influenced by what is going to be wearable, fill a gap in the customers wardrobe and hasn't already been covered by another pattern company.