AAAAHH!!! That was amazing. I just watched it and I think it's the best video tutorial I've seen in my life. The speech isn't the best but I'm not complaining; your words hold enough information to keep me listening. The most important part is that I think that the tutorial contains exactly what the title suggests. Information about how to create tiles for a platform game. As a pleasant surprise you actually showed a nice example of tiling the images to a fun map.
Really impressed! Looking forward to your future video tutorials. Hopefully you will be doing more, because if you do, I guess.. You're video tutorials will become legendary resources for all the pixelartist-to-be. Haha, that's worth it!