While studying my game as Black against Grant Oen, I found that White missed a strong move in 16.Qg3. Two improvements for Black are:
(1) Instead of 12...Qg5, I might have played 12...Qh4+ 13.g3 Qh6 which takes away the g3 square from White's queen.
(2) After 15.Be2, my 15...h5 weakened the g6 square. So I should have played 15...Nbd7 16.h4 Qh6 17.g4 g5 18.Qg3 Ke7 with the idea of 19...Rxh8.
