I dont like you, but welcome anyway...
Wish you all the best, you still have a lot to learn, waay too much to improve and a decent price tag to justify. From what I've seen from you, you look like and act like a woman, I would like to say you are a pusssy in pretty much every meaning of the word, but since you are already a Juve player I wont offend you. Your qualities are average at best, you are very poor at defending, poor at tactics, you run a lot and have some tricks, you cross a lot with average success, both in Valencia and merda, and your shooting is... not that good.
In my eyes you are a poor mans Cuadrado and he is just as good or better than you in pretty much everything. But you are still young and this is your first top club, since so far you've been at the joke/circus league, I hope you can handle the pressure and learn as quick as possible that here we play to win every trophy, every game, every inch, unlike what you've seen and been part of so far.
I dont think you are smart and intelligent enough to expect wonders and monster performances, but you could and should improve and eventually become a decent and solid player for us. Welcome and good luck!!