Thats a nice old school fly.

If I may make an observation, I suspect you missed a step. Before tying in the wing the body hackle is trimmed off on top of the shank. The 9th and 10th pictures seem to show the wing mounted on with the body hackle intact from 11 onward it is trimmed.

I knew it to be a Skues' pattern but didn't realise it was Al Troth's inspiration. You have educated me there.

Well done, its good to see the classic trout flies are not forgotten.

Cheers,
A.