Spanish artist Adrián Fernández Delgado studied 2D animation at Les Beaux-Arts in Madrid before working as a designer, a programmer and a freelance illustrator.
In 2008 he signed a deal with Ankama Éditions to illustrate stories within their Wakfu universe.
"His illustrations are full of energy, colours and characters that appear to be made of rubber."
This is one in a series of sketchbooks from Ominiky Ediciones in Spain.
A nice large A4 format, full color, finished illustrations, drawings, and sketches, and no text.
A preview of the book from Adrián's own YouTube channel: