Looks to be a high yellow. They're one of the most common leopard geckos in places such as pet stores. The geckos in my avatar are high yellows. What does your leo look like in the day time? It appears to be night when the pictures are taken.
How long have you had it and where did you get it from? There's a possibility it's a Mack snow if it was white and black (instead of yellow and black) to begin with.
Aliza