I weld an armature of steel, creating a very strong piece.  This is covered in several layers of aviary wire to create the form.  Concrete is pushed into the wire to a depth of approximately 1/2″.  The inside of the sculpture is hollow.  Several layers of concrete are required.  Then it is cured for three weeks to allow all the moisture to evaporate.  A concrete sealer and acrylic paint is applied.

Sculptures are suitable for inside or out.  Outdoor sculptures will eventually develop rust spots.  Water is relentless and will find the smallest crack.  It may take months or years for rust to appear.  Outdoor sculptures will change as they attract moss, get dirty, paint fades, etc.  It is all part of the process.  Cracks or chips may occur if the sculpture falls or is impacted, but they can be repaired.

Dust can be removed with a feather duster.  They can also be sprayed with water and cleaned using a stencil or other stiff brush.