Nail Art Stamps #Take 2

Hi guysss,
As you know I've had some nail stamps recently and I've been playing around with them :)
I have been practising on myself and my sisters nails, here's the result....

For my nails I used the Hawaiian type flower on the M72 plate...

I used a Models Own white for the base coat then sponged on the Barry M pink.

I added the zebra detail using my Models Own Nail Art Pen,

and used Barry M black to stamp the flowers.

I really like this mani, defiantly thing I'm going to use this again for the summer.

This second mani was on my sisters nails,

I saw a mermaid tutorial from Copy That Copy Cat and thought I'd have a go, here's what I used...

My mani didn't go as well as the tutorial,

 I added the mermaid stamp from the M72 plate, but it didn't show up as well as it did on the white mani.

Soooo guyss I really need some help on this one....
What is the best nail varnish for stamping?

Cause Barry M just isn't doing it for me.

xX