Lidia Lukianova is an artist and designer with a passion for illustration. Her primary approach is to use an iPad to create illustrations, lettering, and animation.
The emboss effect is a layer style, so Lukianova clicked the ‘fx’ icon in the Layers panel and chose Bevel & Emboss. You can also double-click a layer to open the Layer Style dialog box.
Lukianova experimented with the Bevel & Emboss settings until she was happy with the results. See the screenshot below for the adjustments she made.