This whimsical illustration is bursting with colour and joy. A group of mermaids and dolphins are frolicking in the ocean in harmony. The mermaids boast rainbow-hued tresses, while their tail fins range from turquoise to lavender. The dolphins have glossy skin, ranging from navy to light blue. To bring out the sun-kissed blues and purples of the piece, try shading the mermaids' hair a warm yellow and the dolphins a sultry pink. Colouring their eyes in a pale pinkish-purple shade will make them shine, while a glittery finish will bring out their glistening wet scales. For a truly magical piece, colour the background in blues, purples and oranges, making sure to leave highlights here and there to capture the joy of the two groups playing together.