Visual aids for collaborative Sherlock fic are behind the cut. This is the Sherlock version; it is recommended that you are seated before you look...
Trousers
available from
Misfitz on ebay.
Boots
Top
And to go over the top, a non-traditional looking waistcoat
top and waistcoat from
XtraX Nails (colour is 'Phallic')
Eyes (colour is 'Alluvium' pure pigment)
along with black, liquid eyeliner and mascara.
nail and eye colour both from
Illamasqua Coat
available from
Gallery Serpentine Sophie Band
available from
Sophie Shop or
Illamasqua Sherlock's hair was mentioned in comments, so without further ado here's Robert Smith when he was younger, with slightly shorter but still messy hair. I think at this length it's not a reach to imagine Sherlock's looking similar once it was crimped and backcombed.