The first three are done in Procreate. The second three are mixed traditional media, and the last two are a mix- one in Procreate and one a combo of Procreate and Photoshop.
Illustrator, teacher and friend, Geraldo Valério created a book on birds of Brazil that is only available in Brazil. But 10 of Geraldo’s prints from the book are available here:
To create the original collages that these prints are based on, Geraldo chose coloured pieces of paper cut from magazines. Read more about his process: