This looks pretty cool
I'd like to see Carlos Huante's white Deacon as it was in the Jon Spaihts script... deadly and using the Prometheus airducts to hide while it kills the crew.
and the Ultramorph, also from the jon spaihts script as the final boss
slightly bigger than the queen.
Just a few ideas.
I'd recommend reading it to find out more about the creatures and how they show up in the story
A cargo hold of alien eggs and a hatchery with different sorts of facehuggers was also in his script. Just a few ideas..