No well-known painter had those initials.
Tsutaka Waichi, Thomas Werner, Terry Winters, Tom Wesselmann, Thomas Wyck, are the ones I have found. There must also be a few hundreds of less known artists.
Alan Sugar
yes there is
L.s.
merie ramone
The initials 'tw' indicate the total weight of the diamonds in the earrings. So yes, this is good information to have.
Bobo Lugington
Amy Whinehouse
Why, Claude Monet of course. You have yourself a gem
steve zahn
Sir Augustus Wall Callcott (1770-1844), English painter. =-D I have some of his art myself beautiful paintings!