Here are 4 (2 views of each) similar, yet different aquarium-themed designs for Leah’s Room.
Remember, we can simplify or add detail at any time. The size and intricacies are the determining factors on cost. The designs you see here are fully detailed images, or realistic. My style leans more towards fewer colors per character/image resulting in more of a playful-realism, meaning the characters look real, but the colors/shading may be of a more playful/illustrative style.