Occasional works for sale online. Free shipping inside the UK, £25 to the rest of the world, but you may have to pay import duties depending on your country.
Tom does take commissions to paint portraits (or, in theory, anything). His prices are:
monochrome head and shoulders (charcoal, pencil, watercolour or oil): £2 000
full colour head and shoulders, oil on canvas: £4 000
full length portrait, oil on canvas: £10 000
Prices for group portraits should be negotiated case by case.