The script in this could use a bit of QC. Tons of instances where the word "The" is missing. Example being page 41 it should say "The monster pinches". Another example on page 21, it should be "The young boy can't stop".
As far as the actual story, I really like this one. But the castration seemed unnecessary since the spider used its fluids to change Ymir's genitals. The testes would have just turned into their female analog of ovaries. Laws of conservation and all that. Yes, obviously it's fiction, but the best fiction keeps as much of reality as possible, IMO. All in all, I'd like to see more from this artist/group.