Please help me level up my emails

Hello, I'd love advice on my email campaigns. I email every Friday to about 1200 adults (50 years of age and over) at 4pm-ish every week.

My goals are to share fun events, important resources, and support groups we have at the church. how can I maximize readability, contrast, and branding?

thank you!

P.S. I do have feedback - I wish it wasn't so difficult to move a block with a photo, text, and CTA button. it is SOOOO hard and takes too long in my opinion. thank you!

https://conta.cc/3wBxiPk