This is a very good example of an Ice Breaker speech.
Some of the things that stood out for me were:
1. Nice relaxed style. You put the audience at ease.
2. Started very well with a fun question that got people smiling and laughing.
3. You told stories about something you know more about than anyone else on earth - your own color blindness experiences and what they meant to you.
4. I liked the way you blended in the story of the famous crayon guy to finish off. It added interest and humor.
5. I loved the mental picture of a color blind person employed to pick tomatoes!
6. You showed how easy it is to speak without notes when you're telling stories about stuff you know really well. At least you made it look easy!
7. I hope lots of people get inspired by your excellent effort and give it a go themselves.