Fantastic mixture of style here!
The best way to start off this sketchbook was done, with the entry from I-Mockery a page full of scathing rant about the low quality paper used for the sketchbook! From that we just get page after page of everyone's own unique ideas pencilled onto the page.
Special attention has to be paid to Aloneinthedark's entry, a fantastic looking cityscape. I can only imagine the amount of time and attention it took to draw that, especially with the strange perspective used!
Bluebaby's entry is also pretty impressive, having to colour the background must have been a real bitch, but the intracite detail to the pattern is amazing. similar props go to the Super Flash Brothers for their brilliant Another Day on the moon sketch! Pako, your entry was just a deluge of colours and shapes and pure brilliance!
I think what could have made this better is if there was a link to each persons newgrounds profile (where applicable) as it would make it a lot easier to root out artists whose work you'd like to see a lot more of. Possibly a little music wouldn't go a miss either...
Still, this was a fantastic idea, one I hope to see implemented every year, with certain Author's who chowed incredible skill or a great dedication to the Ng community returning, but also for newer artists to possibly receive some more widespread exposure!