Aspects from Pluto don't always have to be bad, but Pluto does increase the intensity of the traits of the other planet that it aspects. Since it is respecting your sun, it could give you a stronger personality and will for example, with the energies of your sun being blended basically with a hint of Scorpio-like traits. The same goes for your Venus in love affairs. Especially if this aspect is a loose orb, this can just manifest as an intense depth of feeling as well as an all-or-nothing attitude for love relationships with a sense of deep devotion. Pluto, however, is also the planet of estrangement and separation, and aspects to Venus can give you hang-ups about love or make you feel distant from the opposite sex in general. If this is the case doing a Venus square can help you feel more connected. Pluto harshly aspecting the sun can suggest either a very domineering or close relationship with the father, but can also indicate estrangement of some kind. Pluto can amplify the traits of a certain planetary placement like Jupiter, but in a sorta different way that makes it more intense. It can draw out certain affairs of a placement to become an obsession for example.