Welcome to the forum. No need to apologize for your English. Brava for jumping right in and asking questions.
There are many other old posts on the forum that discuss cutting and engraving paper, but @Jules and @jamesdhatch pointed out two issues that come up: speed and power processes during curves and then using engraving instead.
I have had some good luck with cutting paper. Some type of masking is needed and a backing mat that the paper sticks lightly to will help eliminate flashback underneath.
Try doing one part of your design with several different power settings, keeping the speed the same. Then try it with several different speed settings keeping the power the same. Just copy one part and make each copy a separate color for the line/stroke in your design application. That will give you different operations to adjust.
But this is a very intricate cut and might not be able to get the results you would like. Engraving it, while slower, might do, but that might depend on the weight of the paper.
On the very tight corners, that is where it will be most difficult to avoid burning at the turns.
What weight of paper is this? What kind? Is it a cotton/linen type or wood pulp type? It looks very nice.
Let us know how your tests come out.