Critical reflection of others’ work is a skill that you should improve on. It actually helps make your own work better if you know what is not working in others’ designs. Rather than saying that you’ll use all their works as an inspiration, you should try to pick out 1–2 things you noticed that you learned from, or even something that should be ‘do not’.
On your own design, i think a collage could be interesting, it is just finding a way to do it. As a side note, the ink splashes on your style guide are reminding me of the street art approach again. Can consider keeping it cleaner, but i’m okay if you don’t change it too. Keep it up!!