2015 is the 100th anniversary of the contoured Coca-Cola bottle, and the drinks brand has created a promotion around this with McDonalds in Asia that has seen six illustrators creating rich illustrations around the shape of a series of commemorative glasses.

Each illustration is based around a year from the past century picked by the artist. Here, Stephen Chan has based his sepia-tinged artwork on Hong Kong in 1899. Read Stephen's tutorial on creating one of his style of artworks.

The artworks are used in billboards and posters, and on trayliners in McDonalds outlets – which also include info on each artist. The campaign is live in Hong Kong, and will be seen across 22 other locations across Asia in the coming months.

Read on to see how Stephen created this artwork, and other illustrations from the series.

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