Hello guys, this is a game I played with an online opponent on chessmaster. Any hints on how could I have done better accepted! :)

Me= White

My opponent= Black 

1.d4 Nf6

2.e3 d5

3.Bd3 c5

4.c4 Bd7

5.b4 g6

6.Nc3 e6

7.bxc5 Qa5

8.Bd2 Qd8

9.cxd5 Bg7

10.dxe6 fxe6

11.Nf3 Nd5

12.Nxd5 exd5

13.e4 Bf6

14.exd5 O-O

15.O-O Qe8

16.a4 Qc8

17.Qc1 a6

18.a5 Bf5

19.Bxf5 Qxf5

20.c6 bxc6

21.dxc6 Qd5

22.c7 Nd7

23.Rb1 Rfc8

24.Bf4 Be7

25.Qb2 Qf7

26.Rbc1 h6

27.Bxh6 Qd5

28.Bg5 Kh7

29.Bxe7 Kg8

30.Bb4 Nf6

31.Bd2 Kh8

32.Bg5 Ng4

33.h3 Kh7

34.hxg4 Qe6

35.Qb7 Ra7

36.Qxa7 Qxg4

37.Nh2 Qxg5

38.Rb1 Qf4

39.Rb8 Rxc7

40.Rb7 g5

41.Rxc7+ Kg6

42.Rc6+ Qf6

43.Rxf6+ Kxf6

44.Qc5 Kf7

45.Rb1 g4

46.Nxg4 Kg6

47.Rb6+ Kg7

48.Qc7+ Kh8

49.Rb8# 1-0

Does Chessmaster not use PGN? Instead of posting a list of moves, you can insert the game and actually see it and the moves visually.

I placed some comments on your game, hoping it to be useful :)

kudos