A long time has passed and a lot of skills have been practiced.
All in all I can say that it does look a lot like all did get something out of this exercise.
Not let alone the thread control, the most needed skill in any fly tying.
The critic from me this final round:
Stilis 1: Not much to add here.
Maybe the small dent/gap between the body and the thorax.
Something that can be avoided by making the body a bit too long and the cover the extra with a little of the thorax.
Again a super fly.
The nit picking here is following; I see a thread wrap on the thorax, could be covered in dubbing.
The few stray fibers sticking up from the hackle could be removed ;-)
Tail: On back of hook, move to top.
Wing post: Ok
Hackle: a mess... Try to tie in the hackle on the post with a few turns, then put each turn of hackle between the previoud and the hook moving downwards. Finally secure the hackle with 2 wraps on the post and whip finnish (using a thin thread or twist it to make it round and thinner...
Tail: Goes around hook? move to the top.
Body + thorax: Very nice
Wing post: also ok
Hackle: A bit to dense to my liking, but nothing wrong... a bit of tidying up to remove the strays would be good. (Stray hackles pointing down breakes surface tension and sinks the fly more easily)
Tail: A little too soft looking
Body: would have liked it more hard dubbed
Wing post: A bit to short for my liking, wings tend to be at least the length of the body on may flies
Hackle: Fibers too short and hackle to dense for my liking, but very nice wraps done...
Tail: Missing :-P
Body: A little smoother would be nice
Thorax: Hmmm, hard to get a good impression of, but I would have made it a bit longer
Wing post: Good
Hackle: see comments to jjs89yj
Tail: falls down the side of the hook, and fibers looks a little on the softer side
Body: Buggy but nice
Wing post: good
Hackle: a tine bit too long and looks again as beeing a little to the softer side of dry fly hackles.
Tail: Placement good, try to do a single turn underneath the tail to spread it out fan like in one plane.
Body and thorax : not too much shape but ok.
Wing post: Good
Hackle: Good, but a little tidying up would make it even nicer. Also to spread down the hackle pointing up, a foam thorax could be used (BWO Dun here: http://www.wideopen.dk/webshop/the-fish-the-fly-1-dry-flies/)
jmchaughan: A bit more hackle and a broader wing will make this hopper look even better.
The body could also be a bit heavier, but not needed.
Tail: Same as many above, tails belong to the top of the hook ;-)
Body: Really nice
Thorax: Looks like it could be done better with another material than the vinyl-rib (?)
Wing post: Nice
HackleS: Very challenging doing two hackles on a parachute, but ok here. Again a bit tidying up always helps.
Tail: It's on top of the hook, Hurray :-D :-D
Body: Looks good
Wing post: A bit more length will make the fly even looking better
Hackle: To many turns and too short fibers (only a little too short;-) ) + the standard comment - tidying up helps ;-)
Hope you all can use the input I've given.
All flies will fish and catch, but the aim is not to catch fish but fishermen.
And remember, thread control and limited use of thread is the way forward.
Think of your thread as the most valuable material you have, use it only as thick as needed and only the number of wraps needed to secure your material, other is overuse... (Read: misuse)
Have fun and keep up the good work.