Further information will be provided on these in due course...
These are:annachromy.com sciencephoto.com, wikipedia
1. [still looking]
2. Cloak of Conscience (Commendatore), Anna Chromy
3. The Aviator (Milan Rastislav Štefánik depicted as a World War I aviator). This statue is replicated in Paulhan, France and in Bratislava.
Another visit to Prague seems likely:
TOP 6 BIZARRE AND STRANGE STATUES IN PRAGUE
Monuments & Statues in Prague
5 Must-See Sculptures in Prague
Top 10 strangest statues in Prague
You Haven't Seen Prague Until You've Seen These Sculptures ...