#1: Personally, the clone angle is very illfitting. The cloning feels very sci-fi and out of place. Bioscience? Very very sci-fi. This isn't taking place in the future, the tech level is present at the most. Scratch that, it is more 1950-60's with some liberties taken for flair. 

#2: There is magic, their are fairytales in modern clothes and I suggest using the telepathy as something that can be explained as a fairytale magic trait. Twins have tons of symbolic meaning in magic. They are fairly common in tales due to this. Pulling in sci-fi tropes makes little sense.

 But I'll let Drago be the judge of it.