Create a photo-realistic image with a light, solid-colored background, ideal for a Christmas category. The scene should depict a family celebrating Christmas together, engaged in the joyous activity of opening gifts. Include a family members, ranging from children to adults, all gathered around a beautifully decorated Christmas tree. The family members should be in festive attire, with expressions of excitement and happiness as they unwrap presents. The setting should be warm and inviting, reflecting the essence of a cozy, family Christmas celebration.