This is certainly an ambitious VN! It's remarkable that you were able to put together a detailed story of this length in such a short span of time.
I was impressed by the CGs, especially the sequences with animated visual effects; they really helped those intense moments to stand out strikingly! I also thought that the sound design was well done—particularly the use of sound effects, though the background music also gave the VN quite a bit of character, heheh.
Meanwhile, at the risk of understatement, the story was staggeringly dark, and made for a very sobering read. Watching Violet's unbecoming progress as it did, ceaselessly, ruthlessly, bit by bit and step by step until nothing was left of her was... difficult, to say the least. In all honesty, I found myself feeling rather uncomfortable at certain points, which is a rarity for me.
And that goes doubly so in light of the story's conclusion: Seeing Arachne, for all of the literal crimes and other abhorrent things she did, not only completely evade any consequences for her actions but actively prosper in the pursuit of her schemes... well, it's a conclusion that's unfortunately more true to reality than I might care to admit, I'll say that much, heh.
You've made quite the memorable VN here~