Learning about my language use from a word cloud

I happened to notice the picture below on the desktop of my MacBook:

Glancing over the image, there are some obvious things that can be noted. The two biggest words are the name of my protagonist and his antagonist’s title. There’s an assortment of other character names and descriptive terms that all feel appropriate for the work. Then there are some words that appear fairly largely in her that make me a bit concerned: “felt”, “looked”, “know”, “just”, “walked”. I can see, just from looking at this, some things to watch out for in my writing to make it stronger.