Photos are seldom ideal. What I do see, however, appears to be more in the way of darkened tear troughs and the beginnings of bag formation under the eyes. A problem with discoloration on the cheeks is less obvious in the photo.
That having been said, for the sake of completeness, there are some general comments that can be made about the treatment of pigmentary irregularities of the cheeks and elslewhere. Dark spots on the skin, including under the eyes, can result from the presence of prior inflammation, such as acne or eczema (postinflammatory hyperpigmentation aka PIH), genetics, sun damage, pregnancy and hormone treatments, such as birth control pills. The dark circles on the cheeks should therefore be evaluated by a board certified dermatologist and the appropriate treatment instituted. For post inflammatory hyperpigmentation, this would mean eliminating the cause or suppressing the active condition and then instituting, if necessaryan at-home and in-office regimen of skin lightening agents and peels.
If the dark "circles" on the cheeks are more triangular in shape and in the mid-cheek area, these may be caused by loss of volume below, and the shadowing effect on the surface that is often seen as a consequence. For this, volumizing fillers, such as Perlane L, which have a greater lift than Restylane (which is really best reserved for treating fine, shallower lines and wrinkles) or a combination of Perlane L and Radiesse, may work quite well.
Under the eyes, the dark circles, like tear troughs and bags, may also be rooted in a loss of volume. However, the delicate skin here requires treatment with fillers, such as Belotero Balance, which do are unlikely to cause the Tyndall effect, a light scattering problem that imparts a bluish tinge to the skin when hyaluronic acid fillers, such as Restylane, are injected too superficially or into very thin skin. If volume loss is the underpinning to the dark circles, I typically combine the Belotero with a very tiny amount of Radiesse (which is whitish in color) in order to help lighten the overlying skin without concern for inadvertently darkening it via the Tyndall effect.
Consultation with a board certified dermatologist with extensive experience in treating these various problems is a must.