"could have a play on the 'lab' theme"

What means?

I don’t understand it

Hey buddy!

Just means, that you are more than welcome to incorporate some kind of lab theme into the logo. But not necessarily :)

please see my updated design......

Hello,

I'm looking forward to your feedback for my submission #17456571
Any suggestions would be helpful in finding the perfect design for you.

Best wishes,
Letitia

Hi again,

I'm still waiting for your feedback on my submission!
Please remember that this would be very useful in building your perfect logo.

Best wishes,
Letitia