I have loads of water decal with Alice in Wonderland theme. Here is one of them. I love the quality of this one. The color is very opaque and they show very well on even dark nail polish.
You can get these here:
So, first I painted my nails with some base colors of my choice.
The pink is Étude House Enamel Ting Gel Nails #14 and the blue is ONL DD Pop Nail #09.
After everything was dried, I applied the water decal on my nails.
Here are the same decal on darker nail polishes. Again, these are gel polishes.
Polishes I used from left to right:Fuse (unknown)
Fuse V-amp 71913
Seche Vite Fast Dry Top Coat