Oo I like your idea of adding a secret society of really tiny people. Please whenever you got the time do continue with this. I especially enjoy the second option.
i love how the story is going so far , but you should write the part where Kyle tries his best to help his brother.
That would make the story much better and it would teach both Kyle and Brandon to be nice to each other and care for one another. Like an average movie about 2 friends or 2 family members