"Design a thumbnail for a YouTube video focused on mental health and healing. The goal of this thumbnail is to convey a message of tranquility and understanding to viewers. The image should have high visibility and instantly communicate the importance of self-care and self-love. The background should consist of colors that evoke hope and calmness, similar to the soft light of a setting sun. Rather than illustrations, place a realistic, almost photographic depiction at the center showcasing moments of people finding peace of mind - such as the silhouette of someone deep breathing in nature, or individuals sharing a moment of warmth and smiling together. These images should strongly convey a message of support for those overcoming mental disorders or seeking emotional healing, incorporating elements that symbolize a bright future. The final creation should closely resemble a real-life scene with photographic realism, capturing vivid details and textures to make it feel as though it exists within the viewer's reality, 4k --ar 16:9 --niji 6