how to change the keyboard language

The usual tools for this don't exist (in v11 at least). However, I've seen a few articles suggesting the language to be used is communicated by your SSH client configuration. Can you check your SSH client is configured for Spanish?

I am using the console, since I have just created the virtual machine.

Thx.

OK, so is the language set to Spanish within that software? Forgive me I know very little about the hypervisor side of things.