Just to start off i'd like to make it abundantly clear that i'm no art expert...
I have two beautiful pieces of artwork that appears to enamel paint on metal, is there a specific name for this type of work? (Please refer to the images*). These pieces were purchased from Israel in 1970 and it would be great if I could find out who painted them so I can find some more. If anybody knows what this style of painting (again pardon my lack of artistic knowledge) is called then please advise me, any help would be much appreciated.

* Links: http://bignatiev.tumblr.com/