This is not the case of this one is English (I bought in London) and we must recognize that its "psychedelic" designs are very beautiful. We do not find this kind of books in France. The psychedelic designs were created in England in the years 60/70 and nothing equals them. (For me).
I realize these coloring, not with markers (I do not find it beautiful at all!) But with "watercolor" pencils and rendering is lovely. These are the faces of mostly women, which return us to the days of the Beatles and other psychedelic memories! Any takers?
(Beware, it may not appeal to everyone, it is very modern and poetic, -genre Héroic Fantasy- but not classic.) We must focus the pencils because the colors are very soft ... ;) Good coloring!