Some of these pictures are indecipherable, the numbers system isn't too easy to follow by itself, and sometimes knowing the title of the level hinders rather than helps, as your expectation for the picture is off (speaking only for myself here, you might find it great and easy)
 "Choppy Orc"){kind=icon}
 "Pixelo"){kind=icon}
 "Sonny"){kind=icon}
 "Rhomb"){kind=icon}