Thank you for all the answers! I dont know previously such thing as "printed leather."! On the other hand if this works are done by hand as you suggest, Grey drakkon, for me is still a mistery how she does this negative effect on the up parts (nerves of the leaves for example), because if you dye the leaf and press onto the leather, the colored areas are obviously those that are up. The airbrushing option makes sense inf works like the weat notebook but none in the others... So i will make some test with all the things the people suggest.
Thank you again, you bring some light into my darkness!