Hi back LucidStudent! 
You’re WILD’ing. The technique is not important, there are lots of WILD’ing techniques.
A lot of WILD’ers and astral projecters say they have the same problem with visuals. Curiously, they feel the need to “open their eyes”, just like you do. 
IMO, you’re in a n-REM sleep stage, that’s why you have so few visuals. I don’t think it’s because of a low-lucidity level. You should perhaps try to induce a falling feeling, it could solidify the dream.
Read the dialogs between Xetrov and Popov in the Do you think OBE’s are LD’s? and Advanced Lucid Dreaming topics, I hope you should find some good ideas for your problem.