Who is Elizabeth Ockwell?

Elizabeth Ockwell is a famous artist who mainly draws in perspective her style is:

she draws in pen which most artists never do, in her perspective work she adds more colour to the area in which the vanishing point instead of around the front which is the close up part and where the colour is normally stronger. The human figure rarely appears in her watercolors and etchings of Paris, Rome, Venice and Vienna. She walks through famous rooms and town squares until she feels that she has to 'go no further for the perfect view'.