well i think the coloring and translucency look great (it took me a while to understand why you had pink spheres behind it), but i don't know of many leaves that have small scratches on them like that... i've seen larger scratches that go along a whole leaf, but since leaves are generally pretty small i believe it to be uncommon to see a leaf with little tiny scratches. i think i'd also look at reference pics for the type of leaf you're trying to texture, cause there seem to be quite a lot of veins running through it.