Featured Brooch with rollercoaster tracks?

My memory is terrible these days, here’s another 3 found in the filigree stash bag with the same Sterling Foreign panel. Likely all German too?
Light is yellow, sorry, they are silver colour, no gold wash.

 

They look it to me. The first one is gorgeous!
We always got a lot of German jewellery, being neighbours. A lot of Scandi jewellery too, being close culturally, so it appealed to the Dutch taste.

 

Jolly looking flowers in the second one.
Seahorse I thought might be from Malta, Germany didn’t cross my mind. Got lots of moths in the stash too which may be Maltese.

 

Houseful, very beautiful, all of them!

 

Thank you

 

Since found a German seahorse on Etsy.