Enemy ship concepts

how many polies are these?
I felt there are too much different mesh,
I have a piecemaker code,
which makes pieces/break down
of a mesh in real time,
you should combine the meshes into one without any
unseen polies.

and maybe lesser primitive mesh, such as the boxed guns xD.

anyways, the enemies wil be space monsters that could invade
human's ship to be used to assimilate with their body.

so the enemies should have a less "alien"/futuristic
looking.

sorry, its my fault for not telling you about the concept beforehand,
but I myself is still trying to come up
with a story. ;(

The main ship the protagonist use will carry obelisks, that is a relic crystal
from the edge of our dimension.

it is the only weapon capable of destroying a special carapace
a certain alien will hold. (so the smaller enemies will still be destroyed using
normal weaponaries since they are 70% made from manmade ship.).

the bosses will carry a big carapace,
that can only be destroyed using the obelisk. (either by crashing into
them, or obtain energy by absorbing enemy's projectiles with the relic and
shooting them as a projectile.)
carapace regenerate overtime.

you are the only ship equipped with humanity's last hope.