You have a playmobil diorama or set up by your home ? 
& Witch it is ? Pirates , Medieval , City life , Fire fighters etc. ? 
Well, not a big diorama of so, it's all a bit scattered around the house and 3/4 of my collection is stored since I have a lack of space since moving house ca. 2 years ago (due to a complicated family-affair and some ridiculous laws by our government).
I mostly collect Playmo and make customs that fit into the timeline between 1492 (discovery of the Americas) and 1805 (French-English seabattle at Trafalgar), with an emphasis on the 18th century and naval warfare.
So the range goes from 16th-century Spanish Conquistadores and Aztecs, over 17th-century privateers like Sir Francis Drake (England) and Piet Heyn (Holland), musketeers, 18th century pirates, sailors, armies & navies (England/France), civilians, nobelmen, etc etc..., up to Napoleon Bonaparte. And of course lots of ships for these purposes, those are a big mainstay of my collection.
As the medieval castles and houses also fit well into Renaissance-era dioramas or settings, I have most of those too. Also lots of Victorian stuff, especially furniture for use in 18th century house-scenes.
The big (longterm) plan is a huge 18th-century carribean Island with a jungle, colonists and their farms, a fortified city with a harbour and defensive bastions, a Governor's mansion, an English fleet, a French fleet, a pirates fleet, etc etc... But to set that all up, first one of my dad's houses has to become available to me to move to...
