Create three half-body character illustrations for a fantasy story

Create three half-body character illustrations for a fantasy story. The characters are teenagers. The first character is Nereida, representing Water. She is a teenage girl with flowing, wavy hair in shades of blue and teal, dressed in soft, fluid fabrics that resemble the movement of water. Her expression is gentle yet reflective, embodying emotional depth and adaptability. The second character is Gael, representing Earth. He is a sturdy teenage boy with short, dark hair, and a grounded presence. His clothing is earthy in color, with textures resembling soil and stone. He has a calm and reassuring expression, symbolizing stability and security. The third character is Ignis, representing Fire. He is a vibrant teenage boy with fiery red or orange hair, styled in a way that resembles flames. His outfit is dynamic and sharp, with elements that suggest energy and passion. His expression is intense and lively, capturing the essence of fire. The characters should each be distinct, yet complementary, with their elemental themes subtly reflected in their design. The overall style should be modern fantasy, with attention to detail and a cohesive color palette.