Try fishing these patterns as part of a team of two or three flies, use a heavy fly on the point with lighter patterns on the droppers , this way you will cover more depths and hopefully catch more fish.
Hook: Fulling Mill 31165 Super Heavyweight Grub
Body: Black Thread
Rib: Silver Wire Tinsel
Thorax: Black Thread
Cheeks: Orange Goose Biots
Head: Black Thread
Then Apply a Coat of Epoxy on the whole Body