Custom order necklaces

A lovely customer contacted me from America last week. She asked for a personalised necklace featuring the following phrase in a bright green and violet:

"Oma ♥ Lola"

Here's what I created.

The cute square pendant is the last one I have in stock and I think it nicely frames the phrase. 

What do you think? Could I change anything or should I offer more personalised phrases like this? I'd love to hear your thoughts!

Thanks folks!