They ask for the website link, which doesn't make sense to us artists, but they do this because when they send out hundreds of thousands of these, they have no idea who is who when potential victims reply. And they want to personalize the email more for those who actually reply. But for us, asking to buy art and also asking for our website is a total red flag that tips us off it is a scam.
From: Brandon Domergue [firstname.lastname@example.org]
Date: 4 July 2013 23:20:41 BST
To: undisclosed-recipients: ;
Subject: *Purchase Request*
I am interested in purchasing some of your art work for my self and my budget is between 1000£-2000£ i will like to know if you have works in this category or above.If you do kindly send the images of those ones in this category or website link to the ones in the category.I await to read from you soon.