Since the box is entitled Mounted Line Officers and then goes on to include Generals and Guard I would have little confidence of any direct correlation.
#1 is of an English style saddlecloth as worn on campaign rather than the more ornate shabraques kept for parade. Light cavalry shabraques were generally rounded and heavy cavalry pointed.
#2 is French in style but generally the black or white sheepskins were not so large and would be seen with a saddle blanket as well. So by default only: Dutch, Nassau and Guard.
#3 is of a French style but seems to have a grenade on the shabraque and because of this would be more suited to the Imperial Guard Grenadier officer. No other figure would require the grenade. For consistency French Line.
#4 is of English style dress shabraque and would be well suited for Picton, Brunswick, and Orange.
Ultimately it will be up to your own interpretation though.