The practice of visualizing Hashem is not very powerful for me; I strongly prefer to have no image of the Divine.
When I focused upon visualizing a particular character trait, I saw an image of a woman that I have romantic feelings for. I believe this has something to do with being motivated to be the best ‘me’ that I can be – not only for myself, but also for her. Regardless, (I think) this had nothing to do with Hashem – my visualization was a reflection of my physical reality, rather than a reflection of my imagined spiritual reality.