From the picture it looks like she's wearing extensions or her hair is just mad long.
They way I'd do it is add some kind of curl enhacning product to damp hair and blow dry your hair upside down with a diffuser. DOn't use a brush to blow dry because it'll take make hair too sleek. Spray hair with some hair spray and curl your hair in 1 inch sections with a curling iron. If you can try to use two differnt size curling irons, one with a large barrel another with a medium barrel. Put some hair serum on your hand and finger comb to loosen the curls. Flip your head upside down and spray with a light hold hairspray and flip your head back up. Add a headband and your set
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To style your bangs while you are blow drying, blow dry them to side. When your are completely done curlig your hair use some pomade or wax to help to the bangs to stay swept to the side and then add a headband or what ever you want.