Really well done!
Well, the "Bud Spencer's size" crew is very good if your ship is boarded! What would say an assault team of romulans seeing a crew of enormous people?
Only one thing, can I give you a suggestion?
For the arms, I would try to adjust the bones' envelops, if you are using Gmax or 3DMax: try to make the influence of the bones softer in corrispondence of the elbow. Don't take these suggestions as an offense, your work is excellent!