Source links
1. http://jaromvogel.com/illustration
2. https://www.creativefan.com/important/cf/2012/07/mermaid-pictures/dana-mermaid.jpg
3. https://www.creativefan.com/important/cf/2012/07/mermaid-pictures/dana-mermaid.jpg
4. https://www.pinterest.com/pin/305892999669501059/
5. https://www.pinterest.com/pin/61713457364371597/
6. https://www.pinterest.com/pin/381820874640374839/
7. https://www.pinterest.com/pin/517421444673177937/