Uploaded with permission, all credit to CobraVenom whom I commissioned for this lovely artwork.
Featured above is the garnea Corals-That-Grow-Too-Deep (which is an approximate translation of her name), saying a friendly hello. It is actually a friendly one; the garnea language is entirely sign based, this being the body language for "Hello new friend, it is nice to meet you!". Yes, this has lead to a lot of misunderstandings during first encounters, which is why garnea usually bring another, more sound based species with them to make contact with new planets. They're really the nicest species in the galaxy.
The garnea are aliens invented by me who also have been portrayed here and here.