Here's my custom splash, Widgetlocker lock screen, and home screen. The clock widget on the home screen is Advanced Clock Widget. Haven't tried the pro version yet but the free one got the job done, visually.
Been feelin' very Fantastic Four. The splash is Kirby, obviously, the lock screen is a newer Byrne drawing, and the home screen is by Justin Van Genderen and was taken from kirbymuseum.org in the Kirby-visions portion of the site.