DIY recessed shelving - Part II

It's all done but the trim work, which will have to be Part III of this post... 
Have a lunch date with my dad first...

Here's the progress so far:

 Lay it out and mark for the 1/8" birch plywood backing

 Cut using a jig saw

 I chose a natural stain finish for a contrast, but you could paint it a matching or contrast color or even wall paper it at this point

 The MDF I used came prepainted with a matte finish, but it was marked up so I gave it a quick coat of glossy white

 Here are the two ready for glue and nails

 Ready to be installed

Here's the dry fit - just some shims to keep it centered and plumb and it'll be ready to nail into place flush with the dry wall.  Then the trim will come later.....