1

For this photo, I chose to focus on the tube where you can clearly see the separation of the blue solution and the small clumped blood. Chelsea did a "Blood group identification" to see what blood type the patient has. Positive type will have strong agglutination (clumping) while negative will not have it. Thus negative blood group will have a homologous mixture.

 

Furthermore, I moved the spotlight that they use to really see the result towards the tube so viewers will look at that spotlight right away and to the tube.

Done