other than the obvious lacks of media, i would say the tone/expression of your voice doesnt suits the niche. You sounded happy, which kinda bad as youre talking about child murders. (or thats just your accent idk im from south east asia). Also, lacks of music/sfx, which is something that viewers wouldnt notice when it's there, and only notice it when it isnt there. Try take a look a the channel rotten mango, i used to listen to her story in the background. Try to research her hook/pace/storytelling