Rainbow and Lighthouse

So the other day someone told me that they had always wanted a picture of a lighthouse with a rainbow in it. I set out to create one. Strangely enough I don't feel like I have a ton of free time so I didn't want to do anything too crazy. Plus I am already in the middle of a full blown acrylic painting, so I didn't want to start another one. I thought about doing charcoal... but black and white didn't seem very conducive to a rainbow. I thought about a couple of other mediums, pen and ink, craypa, scrapbook. Can you tell I like to play around with different things?
Finally I pulled out my box of watercolor colored pencils. The premise is that you draw something with these colored pencils and then paint over it with water and the colors bleed out just like the coloring books for kids. Except you put the color where you want. It's kind of a tricky process because its hard to know how much color you'll need to make it vibrant. I haven't played with them in a long time and as you can probably tell the grass and rocks and ocean probably don't have enough color. But it was a fun endeavor. It also would have been better if I had had real watercolor paper.... it doesn't soak up the water quite so bad and curl the paper. I taped the paper down with masking tape before I started painting it with water, so that helped a lot.
Anyway this was a fun little adventure. Too bad the picture turned out a little dark. We'll see if the lady likes it.