Wells: How can I replace the text links in navigation bar with images?

Hello!

Is it possible to replace the text links (e.g. 'work', 'about', 'contact') in the navigation bar with images? I'm using Wells template.

I want something similar to this (non squarespace) website: http://www.melissacastrillon.co.uk/

Thanks in advance for any help!

Elle

Many thanks, Yes it's ellelever.com

@octopus thank you so much for your help with this!