This is the ideal way to get an illustration that is personal to you. The line art hints at a likeness without too much intensity. 
 
I do particularly like drawing people with their eyes shut so you may want to take that into account when sending your photos. Please email your images to cheriedidthis@gmail.com
Portrait is A4 size. Allow 2 weeks for delivery - let me know if it is to be sent direct as a gift.