You can see more of his art here: https://www.instagram.com/yunosk/

His watercolour paints are sold on Jackson's Art (UK)

I thought this ad was made with CGI but it's not.

And this is how they made the ad:

Steven Zapata talks about AI art.

Warning: It's a 47 minute video

Below's a video Hong Kong Cable TV made on urban sketching in Hong Kong. The language is in Cantonese though, and there's no translation.

And here are links to USk Hong Kong Instagram and Facebook.