Judges (don't get me started on whether this should be an “improvement“ task or actually their favourite/2nd favourite to get people voting (Holding back Soph's and Flacker's charlestons etc) or oust people/manipulate
But for improvement on a dance...
Anita Samba or a rechoreoed charleston (though I liked it)
Georgia waltz or a rechoreoed rumba
Helen Charleston or cha cha if charleston too recent/cannot be staged
Jay Quickstep
Katie Salsa or rechoreoed cha cha
Kellie Cha cha or rethemed waltz, Samba, paso

Peter Quickstep or a rechoreoed jive
And Personal faves/showstoppers/second round of finales assuming B'pool ones cannot be staged without change in choreo/no back up dancers
Anita cha cha if paso not doable
Georgia charleston
Helen quickstep (though gapping!)
Jay jive
Katie tango
Kellie charleston
Peter Tango (charleston only if final 3 are him, Kellie and Georgia, then they can have a gurn-off)
Edit: forgot Katie messed up her QS, she can do that rather than latin

(unless they are out to get her/oust her earlier in final

)
In short then bearing in mind they have to do same routines
Anita. samba, cha cha
Georgia waltz charleston
Helen. cha cha QS
Jay. QS jive
Katie. QS tango
Kellie. cha cha charleston
Peter. QS tango
That looks imbalanced so...Anita viennese instead of cha cha, Jay foxtrot instead of QS,
Anita Jay Katie Georgia for final please...