Don't worry Braxer holidays are allowed :P Thanks for the nice comments guys. For me what distinguishes really good work from great work are these final touches. They are not a lot of work but are basic fundamentals of art. I need to produce more current work with this stuff too.
Never underestimate the improvements a good understanding of colour, composition and value can bring to a piece. If these tools are used well they can bring meaning and purpose to a piece or at least a focus.
Here's a good book aimed at comic book artists that touches on some of this with clear examples for those who are interested.
http://www.amazon.co.uk/Framed-Ink-D...0627691&sr=8-1