I like the style of the artwork:  the colors are rich, the monsters are silly — they’re eye-catching.  I’m not sure if it’s a failing in the artwork or in the storyline, or in the connection between the two, but somewhere there is a lack.  This is a nearly wordless story (tag, you’re, & it are the only words), and as such it is dependent upon the strength of the pictures to tell the story.  Maybe it’s a matter of the story being too complicated to be well told in this format, but all the way through you’re never really sure what’s going on, or what the point is — it leaves too many questions unanswered in my opinion, but then maybe it’s going for that — leaving it to the reader’s interpretation?