You have received very good advise already and I just wanted to point out that the EZ-Nymph would look and work better if you did not cut the pheasant tail tips off, but, if you do, you would have another good pattern from Al Campbell called the "SHWAPF" and on it you will see that he cuts the tips off to just behind the bend of the hook. On the EZ-Nymph, you may need to either use shorter pheasant tail herls or increase the size of your hook so that once you have the wrapping done the tips will come out to the correct length for you.
You are doing great and just keep at it and by all means, have fun...
Warren
Fly fishing and fly tying are two things that I do, and when I am doing them, they are the only 2 things I think about. They clear my mind.