Do you think these pictures are Fit for purpose?

Well, I'm a design student and you have used one of the worst things imaginable, bold, underlined, italic, serif font. It also doesn't look very good against the black, white is so much easier to get looking good (Google, Mac, for example) and you could try looking through illustration magazines such as Computer Arts or Print magazine, it always helps to get some good illustration. You've do a good job though, you just need to keep persevering.