An interesting aspect is that when Venus is setting after the Sun it is actually moving ahead of the Sun in the Zodiac. So an Aries Venus would trail a Pisces Sun.
My near Aries Pisces Venus trails my Aquarius Sun, Im just realizing recently that its within reach of Aries, that this works in my hot headedness even though I am deeply mellow. Anyway a trailing Venus is steeped in values, it wouldn't know how to imagine a world without them. It can't ever be nihilistic. It can be deeply melancholic and usually is. A leading Venus is always in search of values, always experimenting with setting itself as one. It is the kernel of any fear of exposure which is what nihilism is a form of - and therefore the thing which brings forth the most delightful defiances of the great hollow truth of society. Defiances which are expressions like art or seduction, things which become ingrained in the hearts of the world forever, acts of beauty which form the pillars of waking, e.g. voluntary consciousness.