Three mini paintings, help determine

[Spike]

Good night dear connoisseurs of art = )
We offer a 3 tiny paintings, inherited from my grandfather . He was a renowned academician , and horrible , as a rule , do not buy it.

1. Moonlight 19.5 x 13.5 ( a pencil and something else)
visible signature and it seems written by Aivazovsky !
on the back of the stamp PAUL DELAROFF

2 . 15.5 x 11 Woman on the field ( oil)
Signature is not found

3 . landscape and the smallest 12 x 7 ( Oil)

I very much want to see what kind of creativity, whose is it , what is the value and the level of art.