This is a commissioned piece featuring two characters,
adopted through Portrait Adoption*. I've used GimpShop
-The Gimp with a Photoshop-like interface-
As it is an adopted piece, critiques would only be considered as advice for future artwork
My main concern with this kind of character commission, appart from getting their physical likenesses right, is to show their distinct personalities and their interplay.
( they may look a bit too broad-smiling for a couple of cold-blooded assasins, but hey, they are in love...)
Again, being a modern-day thriller, there is more in the way of a background this time, in this case a collegiate setting

* The piece is displayed here upon agreement with the customer. Usually Portrait Adoption only allows small, watermarked versions