The below Images are the first few slides I have completed. N.B, the last slide is number 10 which is why it is dramatically lighter in colour.
I think at the moment I have been able to achieve a sense of continuity like I wanted but by changing the background images, it still keeps things interesting. Also, because they are blended into the background they are quite subtle, but still noticeable.
However I think at the moment the images are representational of group work in a professional and not an educational sense so I think I will change the images to better reflect the audience I am aiming at.