Her thick healthy hair has been lightened on the top of the hair with brown colors underneath.
There are also strands of brown from low lights mixing into the blonde, for purpose and definition. The cut is layered in extended lengths. Use a lot of smoothing lotion and gloss when you are done with this style.
Although, Tanya wears her hair fairly close to her face; she seems to successfully be able to get away with it because of the shape of her face.
Tanya also looks like she has a cowlick on her part, and this is where her hair is lifted up a bit as it goes over to the side. Cowlicks can work for you, not against you. It is all in your imagination and creativity.