Balayage is a technique where hair color is painted onto the hair to create a graduated, more natural-looking highlight effect. That means the final look is less stripy than highlights of the past, while offering the same gorgeous dimension and fun color.
This techique became really popular this years, because of its beautiful effect and pefrect hair look as a results.
The difference between highlights and balayage is that highlights almost always use foils whereas balayage is more of a visual hand-painted technique. Balayage will always give a more subtle result than traditional highlights.
You can look for more ideas with balayage hair https://lovehairstyles.com/balayage-hair-brown-caramel-tones/ here and see that this type of dying your hair is extremely adorable, but to complete it succesfully you need to choose professional hairdresser and salon, so you will get exactly that results which you wanted.