My 200g lesser pastel still looks like a baby. My 350g lesser pastel looks like her father. My 150g lesser looks like a baby still.

So I'd say at 200g, it should still look like it did after its first few sheds. As such, this snake is likely another color morph on top of the basic lesser or butter. Notably a color morph which doesn't enhance fading. Check butter or lesser morphs on the morphlist. Look at baby bp pics, as adult pictures of those morphs will be extremely misleading