My compositions (critisize me as much as possible)

The biting way you answered my first try (forcing a specific textual format) has put me off enough to not engage any further.

For no1

1.g8=Q Nd6 and 2. Qc8

I don't understand the problem with that. Just don't create stalemate and the obvious moves win.

1. Qxg6 Ba7+ 2. Kh2 Rh5+ 3. Qxh5 Qd7

1. Qxg6 Rf2 2. Bxf2+

I don't see clear mate in either position.

First position g8Q Nd6 Qd8 Nb7 Qc8 Nc5 Kg2 mates, no? Everything else looks winning too, though.

The first is mate in 9. This can be checked by comp.

The second one is interesting though. It is an illegal position so it can't be fed into my comp.

Here is the solution for the first one:

Please answer my question on the second one.

Sorry, but my comp says there is no mate in 6.

Here's some possible continuations for the second one according to Houdini 1.5: 

0. ... Kf6 Nxc3 Kh5 2.Bxg6+ 2.Kf3+ Bc6+ 3.Rd3+ Kf6+ Bxb4 Nxb5 Bxd3

1.Kf3 Bc6+ 2.Kd4 Kf6 3.Kxc6+ Kd5+ Kb6+ Nxc3+ Q2xa3+ d6+ Ne4+

1.Kf3 Kf6 Bc6+ Nxc3+ Kh5+ 3.Bxg6+ 4.Rd3+ Kf6+ Bxb4 Nxb5 Bxd3

ok you asked for it: you misspelled criticise. What is wrong with you?

for problem two i meant to put a knight, not a bishop on b8. watcha, if white promotes to a queen black will just move his knight between c8 and d6(or betweens c8 and e7) if white takes it then it will be stalemate.

With bNb8 there is a cook found by comp: 1.Qxc7!

i think white can still hold a draw, they will get a fortress i think.

Solution of first on promote the pawn to a knight black has to play Nd6 then we play Ne7 again black has to move the knight and whereever he moves it Nc8 is mate