Trying out sketching digitally

I was messing with the auld Wacom tablet and photoshop and started sketching, messing about.  I saw a pic of Paul O'Connell and decided to give him a go as a caricature.  So will finish it when I get back from Scotland.  I am looking forward to heading there this weekend.  I was gonna finish it tonight but only just realised the time.  It is bedtime, definitely bedtime.