I think Jenny and Jody have answered you well. I think that, just like children, puppies are individuals, and all have slightly different schedules. You will figure him out over the next couple of weeks!
As far as the dandruff is concerned, I hope you have already made a well puppy visit for him with the vet on Monday? (you should do this ASAP, whenever you bring a new puppy home). If so, I'd mention it to the vet. Itching can be anything from fleas to allergies, to nerves to not liking his new collar. You can easily test this last one by taking the collar off when he's in the house and see if he scratches less. Another possibility is that most breeders give the pup a bath shortly before sending them home, so they are nice and fluffy for the new owner. There is always the possibility that he didn't get rinsed well enough, and that is making him itchy.
As far as his facial hair is concerned, do you plan to keep him in a puppy cut or grow him out? If you want him in long coat, you probably want to leave the hair around his eyes alone. Yes, it goes through an awkward stage where you can't see their eyes, but when it grows longer, it will start to lay down out of its own weight. The problem with cutting it is that then you are stuck cutting it frequently, to keep it short enough that the little pokey ends don't bother his eyes.
Also, if I remember right, you got Tux from a good, reputable breeder. If so, do CALL her if you have questions regarding training and especially health. (like the itching and dandruff) Your breeder can be a font of information, and has a vested interest in making sure things go smoothly for "her" puppy in his new home. No one knows that puppy the way she does!
Finally, you might want to consider an indoor potty option for your puppy. Many of us use one form or another. Kodi has a litter box, and many other people here use the UgoDog. These dogs invariably, eventually want to go outside most of the time. But an indoor potty can be VERY convenient in bad weather or if you have to leave the dog alone for an extended period. Once the pup knows how to use it, it's also a great back-up for times when you "miss" reading the "I need to go out" signs. A pup without an appropriate indoor option will need to find SOMEPLACE to relieve himself... usually someplace that's hard to clean up!
If he has a litter box (or what have you) he can get himself to the "right" place without your help.