Mini paintings

I've determined to do something during my breaks at work that stimulate my creative mind. I can't do a lot in 15 minutes but I did come up with an idea. I made tiny mat windows (about as big as a large postage stamp). I move the mats around some photos and copy what I see.  I came home and tried my hand at painting some of them. These are exact sizes of the actual paintings. They are comparably quick and feed my need to paint. I liked the clouds over the landscape, and the bright sun shining on the gardener's hat as he worked among the day lilies.
There are times when I think I enjoy the painting process more than having a finished product. Right now, I just want to go a bit wild with water and paint - but part of me says I need a plan before I start. - ba-humbug.