JRN Cales Majors (Realistic War- / Combat spaceship

Hello !
This is my 2. Project it posted on this side. The project is called “JRN Cales Majors”. JRN stands for Jupiter Republic Navy.
I wanted to make a Hyper realistic Spacecraft that is based on real Physics.
Some data:
The Ship is 230 Meters long and weighs 250.000 Tons when fully fueled and about 50.000 with no fuel. It is propel by 8 Engines that together can accelerate the ship with 5Gs. It has 80km/s of Delta V and can house a crew of 50 in the two Habitation rings.

So there it is. As you can see, there are two rings. One is spinning Clockwise while the other is spinning counter clockwise. That stables the ship.
In front of the two rings you can see 4 Torpedo Bays and on top of those are 2 Gatling Guns and 2 Lasers.
What you can also see is that most of the ship is fuel (200.000 Tons).

This is a Front view of the Ship. What you mide ask you self is “What is that thing in the middle ?”. Well the Ship also has a Railgun that uses the size of the Ship. Because if the ship is that big, it would be a crime not to incloude a Railgun.

Some renders:

This is an older Version of the Ship. There are some Torpedos in the upper right corner. It is in the post so you can see the progress.

This final render shows the Ship from behind. You can see the Engines and one Gatling Gun.

So thanks for ready so much ! As you can see, its not done jet. Many Materials are still missing. I want to ask you guys what i can improve or what you would improve. I want a Sun with a nice lens Flair in the final Renders and my target is to make a full scale Combat Animation with this ship.
Please be honst with you critics, destroy my Work if you think you have to. I will only improve by facing my mitstaks.

Thank you again !

Have a nice day !

Render settings:
800 Samples
Denoised
Filmic Logic Colorspace
Orthographic camera View in most renders
Res: 3820 x 2000
Compression 100%
Clamping Indirect: 1.0
Color Depth: 16bit
GPU: RX 480