For special characters you can try How to save special characters (such as ç , í , ü , etc) in Airtable
To use images in airtable you have to use cloudinary (or another service in the cloud) and save the link in airtable.
At the moment it is not possible to get the images saved in airtable.
EDIT:
In the buttons of the CardView you must put the block “make a list”
