Some tips about those streamers: they are very tricky and can drive you mad ;-).
Try to put the wing simultaneously and shorten it to the tail-lenght. If they are too long, they will be wound up on the body when you fish it. I did the same mistake, to let the wings that long.
Try also to expand the silverribbing.
Tip 1 for the throat: from the longer side of the feather about 2-3 cm and then try to fold it
Tip 2: wind it like a Wetfly-hackle and put all the fibers down and secure it.
Keep ging on that Pattern! I know that is hard work on it
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