Hello,

Are you sure it's actually dry? Or is it just matte?  Can you take a photo closer up, so we can see the fabric better? The polyester one does look a bit dry, but the epoxy ones all look ok. 

You'll probably just find that the laminating resin just isn't a low enough viscosity, infusion resins are typically less than 500 at 20-25deg and some less than 300, typical laminating resins are between 500 and 1000 so it may just be too high viscocity