The sepia look is an absolute classic. To enhance a black and white image with a classy sepia tone, follow these steps. Click on Layer → New Adjustment Layer → Photo Filter, and select the Sepia filter, with a density of 100%. Double-click the layer (not the layer name) to open up the Layer Style window. This will show the Blending options.
A view of the Layer Style window.
At the bottom of the dialog box for the first gradient, move the white slider to the left while holding the
Alt/Option key. This creates a smooth transition between adjusted and unadjusted areas. The sepia will now look elegant.