In the air sketching

I went on a weekend trip to Hong Kong last Friday. I did the first sketch at Changi Airport on a new sketchbook I bought from Lisbon. The sketchbook was handmade by Ketta Linhares. You can follow her here. The second sketch was done in the air inside the Singapore Airline plane. It was shaking most of the time when I did this sketch. I just went with the flow with curvy wiggly lines.