The drawings / illustrations in Asterix and Tintin comics are just great. I like them almost more than the stories or characters, especially for the Asterix ones. The drawings of scenery are very evocative, and expressions on the faces of the people in the comics seem very realistic, despite being drawn with just a few lines, relatively speaking.
Another great point about Asterix comics (so I read), is that they were initially written in French, and later translated into English (I've only read them in English) - and still there are many puns and word plays in the English versions. I don't know how they managed to do it, or whether they created different puns for the English versions. Likely the latter, because I guess the puns would not translate well across languages.
https://en.wikipedia.org/wiki/Asterix