This illustration was created by Birgitte Johnsen who is a freelance illustrator and digital artist. The media they use to create their art are Adobe Photoshop, Adobe Illustrator, Indesign, and Procreate. You can view more of their work through this website https://www.artstation.com/iambirgitte

Birgitte used a limited color palette of blues and oranges. I believe that this is very effective because the colors contrast with each other very well. The use of the variations of blues and oranges worked very well because they used those colors to create shadows and highlights.