I was aiming for something entirely different, but running out of time. So it had to be a simple “classic” again instead. Sorry, Juan.
No “Practice Random…” line to see here – please move along. Oh, wait. There’s still a quite obvious appearance of the number “42”, the two mysterious cFos guys and “cFos” itself.
And (this is the only, but not really hidden part) you can find the year 2015 in Attic Numerals right in the middle of the image.