Orange - Yellow
Thumbnail species colours are white, grey, black, brown, pink, red, orange, yellow, green, blue and violet.
Just scroll thought the thumbnails and see if you can find a match, click on it and that species page will open.
Some species can have more than one colour, so that species will appear in those colours. For example Chromodoris eliabethina
is blue, black, white and yellow with orange rhinophores and gills. This species will appear in four colours! Use body colours.