First : Твой, Твоя,Твоё,Твои are 반말.These all means 너의.
Using depends on the Gender of Nouns.
Твой -for masculine gender nouns: Твой компьютер- 너의 컴퓨터 ( компьютер - he)
Твоя-for feminine gender nouns : Твоя комната-너의 방 (комната -she)
Твоё- for common gender nouns:Твоё кресло-너의 안락의자 (кресло-it)
but Твои -plural form of NOUNS.It does not depend on gender of nouns: Твои деньги 너의 돈(деньги plural) Твои друзья 너의 친구들
Second:
1.
Ваш(masculine),Ваша (feminine),Ваше (common) ,Ваши(plural form of NOUNS) are the same thing ,but in 존댓말 and when you want to tell smth one person.
just 너->당신
2.when you want to tell smth 2 or more people.
so here...
Ваш(masculine),Ваша (feminine),Ваше (common) are plural form of PEOPLE,Ваши-(plural form of PEOPLE and NOUNS)
doctor tell married couple:Смотрите,ваш малыш!->Look,your baby!
to passenger :Пожалуйста,ваши вещи.->Please, your things.
=^.^=