Firstly ,let's find out Giuseppe Arcimboldo and his tecniques :

https://www.giuseppe-arcimboldo.org/

For online Drawings we can use this website;

http://www.middlestreet.org/archim/archimframe.htm

KA Atheneum Geraardsbergen

Click here to see the slideshow of Arcimboldo Art of 4HW. 

Colegiul Auto Traian Vuia

Greek team-students online drawings

Lithuania team exhibition of student works

https://21stschool.wordpress.com/2021/01/18/blog-nr-112/