Next tactics: clearing a line or a square (peaces who prevent a decisive blow are removed from the line. Clearing a square - a piece is taken away from square, another piece lands there and gives a decisive blow). Enjoy!
The h7 square in first diagram looks great for the White queen and she actually can get there. Find the way!
As the Black king is in a 'box' maybe some other peace should be placed on the square where White queen is standing...
If only we could put the White queen to g7 square... Try!
In this diagram g4 is the best square for the White queen to be...
How we could place the White knight on the square the White queen is standing?
What is the best piece on e4 square (where the Black knight is standing)?
Again, the Black king has no square to move - one more attacker could finish the job....
The Black bishop is in a way - how to move it away and deliver checkmate with the Black rook on e1?
h2 square looks good for the Black queen - how to get there?
Maybe it is not winning at all but that fork on e5 square with the knight looks delicious...
Do what You do but the White bishop will deliver checkmate on move 3
Remember the tactics in 1st diagram?
Queen e8? But how?
Something is wrong on the 2nd horizontal...
That White king has huge appetite...