Hi there and welcome. That's a pretty interesting concept for a deck. I don't really think it's going to become a top tier deck at any point but I'm willing to bet it can be tweaked into something that will do well in pvp1 and ai3 and such.
Right now, I think the best way to improve the deck is to focus more around your main strategy. Remove the bone walls and replace them with more hopes. Remove the plague. Get up to about 4 boneyards for faster skeletons. If the viruses themselves aren't generating death effects fast enough, add some sparks. Also, I think you can operate almost entirely pillarless if you want to by adding more soul catchers, letting the death mark play your first virus (or just relying on sparks to trigger the soul catchers) and then rely on luciferin to generate the light quanta.
Maybe something like this:
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52i 52i 52i 52i 52i 52i 52n 52n 52n 52n 52v 52v 52v 52v 52v 52v 5la 5la 5la 5la 5lj 5lj 5lj 5lj 5lj 5lk 5lk 5lk 5lk 61p 61p 61p 61p 8pk
I'm not completely happy with that draft I just posted, but that's more or less what I'd use as a starting point. Alternately, you could stick with death pillars (since you don't really need the super duper quick quanta generation from soul catchers) and go with this:
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52g 52g 52g 52g 52g 52g 52i 52i 52i 52i 52i 52i 52n 52n 52n 52n 5la 5la 5la 5la 5lj 5lj 5lj 5lj 5lj 5lj 5lk 5lk 5lk 5lk 8pk
Not really sure which of the two options is better, and I'm fairly sure it can be tweaked further from here to get better, but I hope one or both of those options is helpful. Enjoy!