A well-fitted shoulder should lie flat. The seam on top of the shoulder should meet the sleeve of the suit right where your arm meets your shoulder.
Wrinkles on the sleeve and on the top of the jacket means that the jacket is either too bit or too small.
The “break” is the small wrinkle caused when the top of your shoe stops your trouser cuff from falling to its full length.
The cuff should rest on top of your shoe, with the trouser falling a touch longer at the back than at the front but must be above the heel of the shoe.
Your jacket collar should rest against your shirt collar, which should in turn rest against the back of your neck.
A tight collar will create bunching and folds just beneath it, and often wrinkles the shirt collar underneath it.
Make sure you get the right advice when choosing your suit. The Evolve Menswear Massive Winter Suit Sale is on right now.