On a size 6 3x-long streamer hook, lay a black 140 denier thread base back to the start of the bend.
Tail: a small bunch of orange hackle fibres (cheap strung saddle is fine) about one hook gap long. Bind it in and bury the butts forward under tight wraps rather than cutting them.
Bind in the flat gold tinsel at the rear; if any black thread shows under the tail, take one more wrap back over it. Run the thread up to just behind the eye and drop a half hitch.
Optional: put a small drop of super glue on the shank and spread it, then wind the tinsel forward in slightly overlapping turns all the way to the front. Catch it off with a couple of wraps before snipping.
Throat: the same orange hackle fibres, bound in underneath and short of the hook point, so they come straight off the bottom. Snip the excess and add a couple of locking wraps.
Underwing: take a small bunch of orange calf tail, grab the tips and thin it by at least half, measure it to the bend, and bind it in on top with a pinch wrap, keeping it on top of the shank. Snip the butts. It lies close over the body and hides any tinsel gaps.
Prepare the wing off the hook: lay two golden pheasant tippet feathers together and glue them at the point where the fibres meet with a drop of UV resin, cured. Do a batch if you are tying several.
Cord the thread up, take it back to where the first wing wrap will sit, lay the glued tippet pair right on top and press it down into the middle of the calf tail. Two loose wraps, check the wing stands in the plane of the hook, adjust, then lock it with tight wraps.
Snip the wing butts, cord the thread, and take it right back to the eye to build a good-sized streamer head.
Whip finish with four turns and coat the head with UV resin for a hard, glossy finish.