http://www.ilkasattic.com/
the digital art on this is beautiful!
http://www.google.co.uk/images?um=1&hl=en&tbm=isch&q=teesha+moore&revid=285309378&sa=X&ei=Bsq9TYbZFoiq8AOQ_azUBg&ved=0CDQQ1QIoAA&biw=1099&bih=516
she did a load of stuff on sketch books thought they might be interesting.
http://www.google.co.uk/search?hl=en&tbm=isch&q=jerry+uelsmann&revid=1494419866&sa=X&ei=JhbkTfD0FMql8QOtz4DoBg&ved=0CDcQ1QIoAA&biw=1259&bih=591
his stuff is so serreal its awsome!
http://www.google.co.uk/search?hl=en&biw=1259&bih=591&tbm=isch&sa=1&q=charnine&aq=f&aqi=g2g-m2&aql=&oq=

I just think they are all really cool, hope you lot like them! :)
just some examples xx