With making the images appear, you don’t directly do something to make them come. When you are relaxed they should occur naturally, you just need to focus on staying aware.
With WBTB it’s recommended you get up to ensure your conscious mind is awakened, you can try it without getting up and if you are struggling then try it with getting up. The technique of trying to re-enter a dream is know as chaining or DEILD (Dream Exit Induced Lucid Dream). There is a topic about it in Pathways To Lucidity called Chaining - New Technique.
This sounds like one form of HI to me. I tend to get this when I am in a fairly relaxed state. I get full images slightly later on usually. It sounds like you are heading in the right direction.