Several people ave posted responses with advice about making PD turrets sexy. My answer to the question is, I don't.
People think that because the essential core blocks of a point defense turret are few, and that because such a turret can be tiny, that it therefor 'must' be tiny. Assuming that it is to be tiny, they make absolutely zero effort to protect it, because such protection would make it 'not' tiny. Point Defense turrets can be protected, they need not be tiny, and in my opinion, the survival of point defense turrets in battle is crucial and that therefor, point defense turrets 'should' be protected and should 'not' be tiny.
Furthermore, the profusion of turrets is a major cause of server lag, most especially when it comes to the quantities of point defense turrets people like to put on their ships. If we are to constrain ourselves to a reasonable limit on turret profusion, it behooves us to make those turrets as survivable as possible. Point defense turrets should not be thought of as disposable chaff to be lost the instant shields go down, and that most emphatically is what virtually all PD turrets are these days. Virtually all of them will be swept clean off a hull by the smallest of swarmer.
I take a very different approach. I still put a fair quantity of PD on my ships, indeed I am sadly slightly infamous for putting rather ridiculous quantities of PD on my ships. But on ships large enough to handle a bit of weight (pretty much anything over 1000K mass), I put on PD that can take hits and keep on fighting. Certainly a hit from a large weapon designed to punch through pierce hardened advanced armor and do damage beneath is going to damage or take out one of my PD turrets, but that is not typically what strips the PD off of most people's hulls. It is rather one of the multitude of small swarmer warheads that gets through, splash damage from nearby missile hits, the pitterpatter of smaller, rapid fire cannon, and the like.
Enter the
Armored Point Defense Turret.
Obviously this is a good bit larger than a typical point defense turret, and I probably could have made a few decorative choices beyond a red armor block for a firing aperture, but this turret is designed to be supremely functional. Every single interior component is protected all around by advanced armor, and there is extra basic hull to pad it's AHP pool. I even put punch and pierce defensive passives on it anticipating that at some point, the AI would get smart enough to turn them on. Because it has the room, it is actually an overdrive cannon, again anticipating that at some point, the HP of missiles may be tied to their power.
Another reason I didn't decorate it is because it is a ball turret. This turret cannot get stuck on the hull or itself, there are zero possible collisions. This both keeps it in the fight and reduces server lag. I could not create a decorative projecting barrel without creating collision.