Sure, Betty...
I selected the iris bloom and put that into a blank layer at the very top.
Below that, on a blank layer, I created a diamond shaped gradient: colors yellow, orange, white
I used the smudge tool to pull the edges of the gradient out into spikes
I then tried various blend modes on the gradient layer... decided I liked Overlay
Then, back on the top layer, Filter > Artistic > Poster Edges
Here is what I started with:
DSC_0678 SOOC.jpg
DSC_0678 SOOC.jpg (77.65 KiB) Viewed 768 times


Glad you liked it. It was a fun exercise.

Rusty