Yes, it would! We are hoping to add a section to the website with training material from official sources, something inbetween studies and the practice section lichess has. We have a lot of other …

yes, in the second link, you can choose the different languages

Yes, getting that one to work is high on my todo list, I'll look at it short term

Hehe yes, they look good don't they, I'm kind of proud of them :)