DG brightens the colors, cleans up the pattern and enhances the contrast, some combos get brighter with age but most just keep that fresh out of the egg brightness which almost all other morphs tend to either darken or fade with age, some become muddied. But I've not see a DG combo decrease in attractiveness as they age.

If your baby is not a DG, after the first shed it probably will not look quite as clean and bright and it will become more obvious in time. If it is DG it will look just as bright and clean as it does now if not more so. I don't have experience with just a single morph visual DG though, all of mine are multiple morph combos but I believe all I've said should still apply.