A navy two-piece suit is shown full length with a pale blue shirt, darker tie and dark shoes. The jacket is open and the hands are at the trouser pockets. Compared with the more closely framed black references, this view makes the lower outfit visible. It is useful for discussing the relationship of jacket, trousers and footwear, without turning the pictured length into a measurement for somebody else.
Try the actual trousers with your intended shoes and walk before deciding on a hem. Sit, stand and inspect how the lower legs settle. If you want to use another pair of shoes later, compare them before asking for shortening. A length selected for one combination need not produce the effect you want in every alternative.
For the upper area, compare the pale blue shirt with another inner layer in the same jacket. Keep lighting similar and decide which contrast you enjoy. The full-length picture offers a more complete styling reference, but it still cannot establish material, hidden tailoring or the practical result of any alteration to the actual garment.