It's still raining..

[Alan]

... so I took a quick pic of the back deck before the light faded

[Phoenix]

Well spotted! What a good eye for interesting images you have.
Such wonderful geomentric shapes and textures.
Like the Post processing also.

[P Plates]

If you hadn't said what the subject was I would have said looking through some sort of patterned glass - very effective

[Alan]

Thanks you two

[K1W1]

Neat effect. It took a little while for me to work out exactly what it was.