Visuals generally good, if a bit over-busy at times although is more distinct in it's style than Mary and the Witches flower and a stronger movie overall. The script is the movie's major weak point as it was fairly predictable and meandered around with a lot of tiresome exposition, although the starker sequences through the backalleys worked a lot better, and it did a good job overall of representing a British city.
Most of the characters and especially the villain were fairly generic and uninteresting, although his sidekick is probably the movie's most striking and interesting character. Bonus point for the IKEA shark cameo.