So I've got my 26D Subaru Silver paint. After wet sending the area covered with Prime I protected the rest of the car with the paper around the damaged area.
And start painting using original 26D Subaru silver spray.
The error I made was to spray the whole area overlapping the protective paper. The result of that was the clear separated line between the sprayed area and the rest of the non damaged part like on the picture below:
So I resprayed the area again trying to not go over the protective paper. This time the result was much better.
I painted the area 4 times letting it dry for 5-10 min between the runs.
At the end I sprayed the area with Acrylic Coat I found in my friend's shop
Let it dry for half an hour and this time the result I've got was much better.
On Monday I will polish the bumper to finish it all.