The pastel gene wouldn't be that noticeable with an albino. I would suggest a base morph that complements the gene. The previous poster suggested a spider, but I would recommend looking into the genetic issues that spiders have if you are leaning in that direction. It's a good idea to look into the genetics of any morph you decide to work with.

There are many good morphs that work well with pastels: pinstripes, cinnamons/black pastels, mojaves, lessers, and even other pastels to make a super pastel. If you want to work more with recessive genes, look into clowns, piebalds, genetic stripes, and ghosts. Of course there are MANY others, but I'm sure you'll find something you like in the list I gave you.

Good luck!