In terms of clothing the shots will be focused on your upper body, mostly head and shoulders.For your upper body perhaps bring two jackets, your pea coat and then if you have a bomber style jacket that would work too. Under the jacket a collared  button down shirt under a sweater looks put together but not too dressy or even a crisp white t-shirt under the sweater . For the shirt and sweater solid colours are best rather than a print or pattern but if you have plain sweater a printed shirt is ok.. Also look for neutral colours like grey, beige ,navy, light blue, lavender, burgundy or olive green for your sweater and to keep it simple a plain white shirt underneath. If your pea coat is black a little bit of contrast between the colour of your coat and your sweater looks good. For example a light grey, beige or light blue rather than a dark brown, dark navy or black sweater. If you don’t have lighter coloured sweater don’t worry having a white shirt will give that pop of brightness we need and we can take some shots without your coat too.I have attached a few photos below to give you an idea of the look.