I love illustration work that is hand drawn, sketchy & feels 'underworked' like Debbie Powell's. The illustration for the Jamie Oliver's tea packaging is just fantastic. Here are a few snapshots of her work... more can be found here.
I have just come across this great website changethethought which is kind of a creative community site. It was originally set up to showcase the work of talented artist and designer Christopher Cox. I am displaying some of my favourite poster designs from the site, some of which can be purchased.