She smiled, the labor pains translated into endorphins, standing in the hallway of her isolated cabin. She looks down. An umbilical chord to her son, laying on the floor at her feet, there is blood everywhere, she screams. Outside, there is a storm, and the lights of her log cabin are seen and her log cabin is seen by the lightening of the storm this stormy night - Inside, she's looks at herself in the mirror, titillated, and then picks up her baby. She looks back into the mirror, she has eight eyes and a chelicera and fangs, like a spider; she picks up her new born, he looks human, and healthy, she cradles him. Outside, the baby screams can be heard, the lights of the cabin go out, a huge chomping sound is heard, silencing the baby's screams - only the sound of thunder and rain is what passes for peace now.
I have a flashback chapter where the antagonist is a child protitute who gets beaten by customers. You're fine. People killing their kids isn't that unheard of. As long as you're not meant to support the spider lady, it's ok. Be careful with the phrase structure, though, and also the tense. You start in past tense and then go into present. The phrasing in the second paragraph gets really wierd and confusing (Outside, there is a storm, and the lights of her log cabin are seen and her log cabin is seen by the lightening of the storm this stormy night). "-" and ";" shouldn't be used as replacements for full stops. "- -" is a tool to insert a phrase inside another phrase. It's kind of like "( )", but with a lower sepparation between the inserted phrase and the original one. ";" connects phrases with a thematic connection, like a cause and an effect. If this is the mother's POV, I don't think she'd compare herself with a spider. She probably wouldn't even think about her looks. You can point out she's a anthropomorphic spider without making her look into a mirror. "Outside, the baby screams can be heard" is a very passive phrase. Might want to replace that with something along the lines of "Outside, the baby's screams get muffled by the storm". Why did the lights go out? Did she kill the lights before she ate the baby?
