Clones aren't looking similar to mother

I have a blueberry strand and I recently took clones off of the mother and they are doing great. The sunleaves on the mother look like any normal indica/sativa hybrid would but the sunleaves on the clones only have 3 leaves for the most part. The clones are about a month and a half old and are 1 foot tall with many nodes but the leaves are looking like the adidas symbol. Both the mother and the clones are still in the veg cycle and I am using the same nutrients for each. What would make the clones deviate from the look of the mother? Is this a problem? Anyone have experience with this?

Thanks!!