I don't know if this was your intention, but those first ones from 2 years ago will be especially good for children. Not just because of the subject matter (pokemons, spongebob, hello kitty, etc.) but the techniques you use in those are just perfect to introduce small children to Inkscape!
I'm trying to decide how I want to indicate this, in the listings on the Home tab. Not sure if I'll make a special bullet, or maybe just put a note about it. If I could find other tutorials which are good for children, I could make a special box (or section of a box) for it. Hhmm...I know that Aaron Nieze has several ones where the subject matter is children's cartoon character, but I can't remember what kind of techniques he used. I'll have to review those -- maybe I'll make a special box or section.
By the way, what kind of character is Doraemon? Is it a cat astronaut? (Yeah, I'm old. The first cartoon characters I watched were Deputy Dawg, Casper the Friendly Ghost, Sylvester and Tweety, Rocky and Bullwinkle, Flinstones, and of course many, many others....can't forget all the Disney characters either, which must span....I don't know, something like 75 to 80 years now?)
Anyway, nice work on the tutorials!