Joe Benitez, creator of the Lady Mechanica series, was the artist on Detective Comics #823 back in 2006 and posted these images last night on his facebook page. This is Page 13 and as you can see the process from pencils, to inks and finally to colors. Inker on the issue was Victor Llamas and colors by John Kalisz.
Got to love the reflection in the computer disk.
And just pencils to inks on this page featuring Robin.