I'd stay away from personal use only fonts since the creator most likely wouldn't want to find their fonts being used in projects that you're selling for commercial use. 

My favorite free front site is www.fontsquirrel.com since they put in a little extra effort in making sure their fonts are free for commercial use.  Takes a lot of the headache out of it for me though I do check the readme files that come with them just in case. 

Coming from a just out of college experience (in America),  students are told they are allowed to use any image they like in a school project so long as it is kept in the school setting and isn't published for sale anywhere.  My professors claimed it was alright to use images directly off of Google searches that since the use of the images fell under Educational use.   I always felt uneasy about it and tried to use my own images whenever possible.  I understand the need for images to learn how to use the design programs, but I felt it also encouraged using any image at all with or without permission even after the education was over.

They didn't exactly explain it very well until I asked in one of my classes about how we as professional designers should find images in the real world and suggested that they explain what microstock was to the rest of the students.  Many of them had never heard of it and probably would not have until they started working at a company somewhere.  After that I noticed that one of my professors started mentioning what stock and microstock is and how to use it once we (students) have graduated. 

I hope this is different at other, larger schools. 

I do understand where Colourbox is coming from in offering these types of downloads.  I'm not sure how I feel about trying to upload my illustrations to a company that advertises free educational/non-commercial use because I'm sure there are people who would dishonestly take advantage of those downloads. There are dishonest people everywhere and this is just another easy outlet for them to use.   At least when I was a student most images I used still had watermarks on them and I knew I couldn't use them for real world applications unless I bought them or got written permission for its use.

Thanks so much everyone!

Thank you both for the advice and insights!

JPSDK thanks so much for pointing out my mistake on the butterfly, I would have gone on forever thinking it was an admiral butterfly,  I'll get to changing it right away.  I'll also keep my eyes and ears open for any chances to keep improving. 

Thanks for sharing your experience and the warning Lisa, I'll certainly keep it in mind as I progress with my photography and illustrations.

I like the elongated face better but his eyes seem to be looking more at the sky than straight forward. 

The round headed guy seems to be looking more straight forward but something about his face doesn't quite jive well with me.  It might be the use of more gradients in his face than the elongated one.