This is an awesome compliment to hear!! I typically regard myself on the backend rather than the visuals, so it was definitely a first fleshing out the sprites and audio design myself.
Level 9 was definitely a little rushed haha - A little tip is that the scanning popups will also vanish when you disconnect from the node by clicking on it. My strategy was to ignore the popups as best I could and focus on the nodes themselves. If I work on the project at all in the future, I could definitely look into increasing the timers or adding safe spots