Seconded Carol on this with a few 
rests, I accept that I'm a bit long in the tooth for this sort of thing but but it seemed much harder than 21 to me. Possibly no individual moves harder than 22 but string them together (with nothing between which qualifies as a real rest) and take into account the technical nature of the moves... and you've got yourself a 23. OK that's my two bob's worth... Comments anyone? 
