Help to make a plastic sheet material

Hi,

I’m try to make a plastic sheet/tarp material in the style from this scene https://i.imgur.com/jdGi7oT.png

I believe the material used is called visqueen plastic sheeting. https://i.imgur.com/uKPgumT.jpg
Here is what I have so far https://i.imgur.com/3KVU8hy.png & https://i.imgur.com/bKs0Ggn.png

I cant seem to get the right balance between the opacity, blur and matteness whilst keeping the reflections of the ripples.
Any help in this matter would be much appreciated

Many thanks