ComradeShiba
So to test your ships I used this ship:

Battles are conducted with Normal AI vs Normal AI.
Test against your first ship:



Now you may thnk it's unfair to have ships somewhat similar in price fight when one of them is a wall, but when I used the same wall to fight your other ship, this happened:





Your ships have three things to improve upon:
Some weapons are not fully protected by shields, move the weapons backwards or the shield forward to improve protection.
Your ships have clear weakspots, while some parts are highly protected, even the AI and surely other people will try to attack you where you're most vulnerable. Protect these parts better, or just make them less vulnerable to lucky hits.
Divide your ship! Compartmentalizing makes your ship more effective, being less vulnerable to fire and having crew less often idle. While your moving corridors make up for this, they are very costly and your crew still needs to walk a lot.