The main idea occurs to me to be (a) figure out a core shape(s) to use, (b) manipulate your word list to 'fit' inside that shape. You can choose different colors, or the same color, as you lay out your design. You could place your word list inside the silhouette shape, resizing and rotating the words as you go. Then find your desired outline shape (silhouette, picture) as a refence. You could type a list of key words needed, duplicate them easily, and royate them (90 degrees or perpendicular, or any angle).
Word Clouds should be fairly easy to create using Inkscape.
