Check it out,  I can make animated gifs too.  You know you can make your own particle props right inside poser.  All you need is the hair room,  a few polys swiped off of models,  the material room (  but OMG these particles are not uv mapped how can we assign materials )  and Create Walk Path.

Now let's recap.  I sent you a sky dome and sky sphere.  I did not send you a reflective sphere prop.  If you would like a reflective sphere prop I can make that and send it as well.

BTW Are you trying to create a light probe for an IBL image?