The Final Project...
This is really simple, and really basic.
Before I did this I was worried because sometimes watercolors can not be vibrant. But I was able to overcome that.
I started by watercoloring the basic scene.
I put some green at the bottom with a yellow half circles and the sky fades from orange to purple. So it turned out to be a basic sunset scene.
After this I thought it was really plain and didn't stand out so I used some crayons over the green, yellow, and some red on the sky.
And then watercolored again, adding some more definite stripes of color and some blending.
That was all I did to create this really simple look, that also looks really great. I hope this somewhat helped you if you struggle with making watercolors more vibrant.