Just want to let you know I replaced the offending picture with a new one I made.
I apologize with the author of that picture, Linda Bergkvist. Although I never intended to use her work without permission I should have asked where this picture came from before using it.
Although my new picture is not as good as hers, I think that being made of the same materials, it matches better with the ships and makes the whole shipset more consistent.
http://se4kdy.cyberwars.com/downloads/ygath/