[ehnto]

Presumably his finished work is for sale and display so naturally it's a bit less likely to see it up online in an easy viewing format. Check some of it out here though:

https://www.kimjunggi.net/

To answer the question though, yes wildly and objectively talented. Part of why you would want to watch a video is to see how he works, his competence is on full display more so than in the finished product perhaps.