I guess you were going for a "landing"pose, so the suggestion is simple: extend one leg, because the first thing any creature does before meeting a surface with its whole body is to maintain balance and meet it with legs (even planes firstly land on their back wheels). The wings, we don't forget that wings just as well have bones and their feathers have a direction (I had problems with wings for a long time too, for some reason I drew them like a pile of LITTLE feathers and done). Firstly goes the bone structure, you can look up for schemes and for quick association so it would pop up in your mind - mantis, the same structure, but they got in on the outside, unlike birds, who hide is under layers of feathers, so it's easier to remember. The same 3 parts that extend and get back together. In the second we got the feathers, to make it easier, you can basicalu distinguish them into 3 parts: the closest to the body is the smallest and rarely noticeable because it's behind the back; the second part(depending on the kind of bird) is larger, but not larger than the third part with the longest feathers on the wings. To improve everything is only one solution, observe, learning anatomy isn't about sitting In front of a book or screen, is a about looking and analysing the thing you see and trying to find the answer to "how?" "Why?" (How it come and why does it look like that?). It means to start drawing the little details that will get erased after, to try and get image of how it will look from an angle or another in head and project it on paper. Look at how people walk, how they sit, what poses they naturally take, it takes time to absorb so got to a show or whatch movies to give people a state without concerning, see animals in the park, farm or zoo, search it online. Good luck!!

