Peter was the reason I got into bonsai, just 3 years ago. His way of bringing the art of bonsai to the public, and to me, is very soothing and catching. Since the beginning of my journey I got acquainted with Bjorn's videos and started visiting this board (and Mirai, Bonsai Empire). I think it's most fascinating that his approach works, especially since it -often- seems to be so different that what I read here (for example his very organically rich soil mixes, even on Junipers and his use of sphagnum moss). And while I can see that he works very differently than, for example, Bjorn (in his videos at least, not sure how he works on refined material), it's super interesting to see that what he does, works. Again, it's fascinating and keeps me thinking. So to me he played a very important role -he got me into bonsai after all. Just my two eurocents.
Oh and I love that robin in his video's.