First of all, I'm sorry for the bad picture of the circuit board.
The first image is how I did my circuit board. The power supply is 9 volts. The blue spots are my resistors, 100 Ohms each* The red spots are LEDs. The color of my LEDs are blue so the voltage drop was 3.0 - 3.5 Volts per LED. When making your own LED array use the chart underneath to calculate the voltage drop**.
Red 1.8 - 2.1V Orange 2.2V Yellow 2.4V Green 2.6V Blue 3.0 - 3.5V White 3.0 - 3.5V
*Use the amount of Ohm's appropriate to your circuit **Approximate voltage