I have this material, though haven't used it. The netting is made from plastic and whilst not overly stiff, is too tough to easily drape over a tank. Its intended as the cover for a free standing structure I suspect rather than a looser material. As Ash said your best bet is to buy some bandages.
The leaves are a nice addition. I've used them in the past on terrain and vehicles. I would warn that they do lose their dye if wet, so avoid using pva glue with them or the colour may run - as I found out when adding them to some snow I'd made.