These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Modest Medusa
Moe: Take one look at the Medusa, and say she's not just adorable.
Nightmare Fuel: The "Ghost". Something about those fingerlike tentacles...
What Do You Mean, It's Not for Kids?: The comic gets a lot more violent and brutal than its art style or humor to-date indicates, starting with the gore-fest of the Chainsaw Unicorn and continuing on when the Medusa is kidnapped by the mermaids. Not to mention the earlier Toilet Humor (toilet Chocodile, anyone?) and Jake's "X-Box". Author!Jake maintains that it is literally appropriate for all ages, not just a younger audience.
It gets darker still in Season 3, when Medusa's mother is finally introduced by wholeheartedly devouring Medusa's sisters as they scream in terror.