UI for a simple Windows clipboard manager

Snipboarddribbble

Earlier this year I made a simple clipboard manager using Visual C#. I got the idea for it after being frustrated from having to go back and copy code snippets and text segments while I worked on various websites. This allowed me to easily re-copy things I've previously copied, the only problem was that it looked terrible. I thought it could use a makeover, and so I thought up this concept. I'm still a fairly novice app UI designer, so any advice is welcome!

You can view the full version of the mock-up here: http://pictir.com/pic/TE3rO.png

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