Yes, green common lizards often occur - I've seen many myself. Common lizards can vary quite widely in colouration.
Most people will say, 'if it's green it's a sand lizard' but that's not necessarily the case.
There are quite a few differences between the two and seen side by side you can immediately tell the difference (not least because the sand lizard has a wide brownish spinal stripe).
What you have there are common lizards.