See the way the colour in the last pic looks different to the previous ones--cameras can be really `off` in the view they give of systems..... I`m curious as to why she said not to wash it ... there can be factory residues like silicone which they spray on the hair to give it shine...that can prevent/interfere with bonding materials giving a good hold....maybe she`s planning on giving it a good wash before styling it in..... If you think the system looks darker than your growing hair, it can be tweaked by adding some colour to your own... it`s not a major `hassle`....you`re in good hands with that stylist.....I`m sure it`ll be fine... you can still mist it daily with water and give it a gentle brush - through.....this will help reduce the `bounce` and make the cut-in more accurate as the hair will be in a more `relaxed`state. Looking forward to seeing the results..best wishes with it !