Thanks everyone!
Since this is the Photography forum, I will chat a little about my pictures.
The tripod is because when I view the photos on the big screen, I can see they are not as sharp as should be, plus often I can now see I should have stopped down to a smaller aperture to increase the depth of field a little. The way they are viewed here it is not really noticeable and they look fine. I am not fully satisfied. Also, since this is Seattle, although it was 10-11 am while I was outside, the sun is very low and I had to crank up the ISO sometimes over 10,000 in the shade. A tripod would help with that.
For Joanna- here is what I did, no fancy manipulation required for the dark background. That white flower is a Choisya ternata, the "Mexican Orange Flower". The shrub is about 5 ft tall, and that flower (less than an inch across) is near the top so very convenient height! The shrub is on the north side of a 6 ft wooden fence (see full photo here) and the sun was shining through the tiny gaps between the boards (see what I mean about the low sun here? It was backlighting the iced flower. I have a 105mm Macro lens. Settings of ISO 400, f11, 1/400sec. Taken quite close, I think the camera lens was only a foot away or so. In the bigger photo here you can see the vertical lit areas that are the gaps between the fence boards, but because I carefully (manual mode) exposed to get the detail in the white flower and ice, the fence behind is very underexposed, it is actually grey untreated wood but looks darker.