At a resolution of only about 53 by 70 pixels, no sensible statements on authenticity are possible; sensible are photos of about 800 pixels width or more. Especially with models from the StarWalker line, counterfeits are by now so good that even on high-quality photos frequently no unambiguous differences to the original are visible. In such cases only a direct authenticity check helps further, e.g. via an enquiry to Montblanc itself (montblanc.de) or via assessment at a specialist retailer.