CAS annual meeting t-shirt design

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This customer received 107 t-shirt designs from 23 designers. They chose this t-shirt design from Yakuza20 as the winning design.
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T-shirt Design Brief
We will be giving participants in this event a free t-shirt. Our design on the front (still deciding between full front and smaller pocket size design) and logos on sponsors on the back. We have the back. We need the front. This is a conference for approximately 1,000 property and casualty/general insurance actuaries. It's taking place in November in Minneapolis, MN, USA. Here is the event microsite. We are using parts of the design on that site on our marketing so would like to include where it make sense. https://annual.casact.org/. The name of the event is "2022 CAS Annual Meeting" The back will be Navy with the logos. We are asking for help with the front. I uploaded a few ideas, but we are looking for new ideas.
Another idea: we could use our design from the microsite in the shape of the Minneapolis skyline (or the famous bridge, etc.) Included stock samples of the city skyline.
Updates
Due to the US holiday, Labor Day, I want to extend the deadline until Monday, September 12.
Need a couple of days before selecting a winner
Target Market(s)
actuaries/members of our associaiton
Industry/Entity Type
insurance
Font styles to use
Colors
Colors selected by the customer to be used in the logo design:
Look and feel
Each slider illustrates characteristics of the customer's brand and the style your logo design should communicate.
Elegant
Bold
Playful
Serious
Traditional
Modern
Personable
Professional
Feminine
Masculine
Colorful
Conservative
Economical
Upmarket
Requirements
Must have
- 2022 CAS Annual Meeting
Nice to have
- Minneapolis, MN
Should not have
- Nothing too flashy. This is for a corporate crowd