Start with a hair extension or light colored hair
Choose 3-5 colors Tha look close but gradually get lighter or darker
Start at the TIPS of hair with the darkest shade you picked and color DOWNWARD
Use the next darkest color and blend the colors with the same downward motion
Continue until your ombré looks complete
You may need to flip the hair piece and carefully replicate the ombré on the backside of hair.
And clip in!!
Have fun :)