Proverbally Yours - Padlock Drawings

As i'm going with the idea of using Padlock's as a symbol for 'SAFE', i decided to do some quick sketches of padocks. then some more refined outline drawings of them in illustrator. Here are the results - gonna work with these primarily as a starting point for my 'Image' poster, but hope to keep it a running theme throughout, linking padlocks into it throughout.