I'm looking to do a self portrait of my girlfriend and I, so I went out and got a lightstand, umbrella, adapter and an optical slave. However, no matter how I angle or position the umbrella, it gives a weird diagonal slanting light that doesn't make sense. It does diffuse the light a little, but honestly not that much, and I've found that I get more light just bouncing off the wall. However I want that targeted and soft lighting that you see in portraits. Is this possible with a reflective umbrella? Do all reflective umbrellas give such patchy light? Should I just return this and get a shoot through? Help!!!