For most part it looks great, looks like you just need some stucco and your good to go.

i agree just looks like you need some stucco.

Looks okay to me. At this point, the window shouldn't be able to move much if you shake it. I would need a straight on picture to know for sure, I can't see how it's mounted to the studs (wood) in the wall. Give it a good shake. If it doesn't fall out, it's good. If it does fall out and smashes, play dumb. *might want to close this page*

If it is firm in there that's great. Try opening it to see if it slides well. Close it to within a 1/4 inch and see if the reveals are even between the slider and the frame. Make sure also you weep holes are on the bottom on the outside. You would be amazed how many windows get put upside down while hurrying. Even though the stickers usually are on the way the window goes.