Looking at the images they are all very stereotypical and oddly enough for leader there are renderings of stick figures and animations.
A lot of the “teenager” images showed young people crying or being consoled which seems a bit odd depending on your perception of the teen years. Suggestions up top include race, emotional state and stereotypes. e.g. here:
Under teacher it was nice to see different genders and races represented.
Nurse had almost no male representations.
Leadership Article from Canadian Education institute
https://selu.usask.ca/documents/research-and-publications/srrj/SRRJ-1-1-Smith.pdf

PDF article from my industry
Canada’s housing market set to impact the country’s economy in 2018. Here’s how.
Podcast on Vancouver BC Real Estate
https://itunes.apple.com/ca/podcast/vrep-83-do-vancouver-developers-need-more-tax-loopholes/id1078731249?i=1000391401219&mt=2