If you are new to pickup patterns, I recommend that you start with something simpler and have a tutorial over here that you might like: Greek Key Pickup Tutorial
The above pattern uses a progression of 5 pattern colors, almost a rainbow, against a black background. The visual effect makes the color bands appear balanced to my eye in spite of the fact that they don't all use the same number of threads. With some of the colors, I used 3 of each and some 4 of each. Below is the threading draft for this pattern. The top row are heddled and the bottom row are open warps.
The pickup pattern is below. White squares represent the background threads in my woven design (black) and colored squares correspond with the colors in the draft above.
Below is the threading draft for it. The top row are heddled and the bottom row are open warps.
And here is the pickup pattern. (Again, white squares represent the background which is actually black in my woven design and the colored squares correspond to the colored pattern threads in the woven design.) You can see how I achieved a nice effect by alternately picking up two chevrons and then creating a space in between by allowing the background to show through, The plain weave pattern in between the pickup areas appears as speckles.