Well, this is one of the illustrations I just did for a poster of a concert, a simphony about São Paulo.
Initial sketch was made on a notebook, 3 inches tall.

I don't usually do this, but this time I have printed the sketch bigger and used it as the skeleton for the pencils, just because I liked the composition so much and it would be very hard to get it right on the bigger size artwork. I'm working on a A4 size here, not that big in fact.

Inked version, using Micron and Staedtler pens.

Since I have scanned the pencil, I noticed how nice the paper texture turned out to be and how it would dialogue well with the city. I decided to incorporate that into the final artwork.
The pattern on the sky is a tile pattern typical of São Paulo, with a very clever use of tiles forming the shape of the state.

It's kind of my homage to Katsuhiro Otomo as well. I always loved how his cities are more than just backgrounds and are treated as characters, his light and shadows and the use of zipatone and patterns in the black and white art.
Well... Back to work.