This is my headcanon of how Greg got that great tan we saw in Baskerville.
And yes Sherlock, he did do everything your brother told him to in this trip.Freckles and umbrellas and snorkeling and fish … *sigh*
Last but not least, here is the large-form drawing by gilesdraws. I am gonna miss posting his wonderful art. He is still taking commissions, which I heartily endorse!