Natural pattern

I really need to wash the windows of our green house but I certainly was intrigued by the green pattern on one of the sides today. I wonder if this is another snail trail through the green deposits.

Thanks so much for all your entries for Abstract Thursday last week ! This coming Thursday it's the first Abstract Thursday in March and as such there's no optional theme, you are free to enter any kind of abstract image, as long as it is taken/made on that Thursday ! The tag will be AT454.

Here's the list of 5 special entries from last Thursday:
59                       shadow shapes
HebbleK            where B&W meets colour
sk                        arty game
AnnieBelle         marble art
DawnP               oil and water circles

And thanks so much for all the kind comments, stars and hearts for Friday's BlipDay and yesterday's thank you tulips