Is this meal plan okay?

I have 2 dogs: a 10 month old Cavapoo and an 18 year old chihuahua mutt (I've had her 9 years and the shelter told me she was 9 when I adopted her). Due to her age, she stopped eating the Caesar food she always loved. Neither of them touch kibble.

At the moment, I'm making charcuterie boards for them. I use a blend of We Feed Raw and Farmer's Dog (they seem to prefer WFR). I top it with at least 3 toppers. Right now, it's a raw egg, a Choolip, goji berries or blueberries, and a scattering of freeze dried organ meats (I have made a mix of chicken hearts, turkey stars, veggie topper blend, dehydrated Brussel sprouts, beef hearts, chicken liver, bison liver, beef lung, chicken cubes, salmon cubes, beef trachea, and chicken feet). On days I work 12 hours, I'll make them a treat puzzle with some of the dehydrated bits (they have a rainbow puzzle, a snuffle mat, and a toy where they have to dig up little fake carrots to find the treats). In the evenings, they have a greenie or a cow ear or a bully stick for their teeth. Once a month they get to split a yogurt cookie. My old dog also gets handfed a Choolip each morning for an extra vitamin boost.

Am I missing something they need? I know I should add kefir or yogurt soon and it is on my list. I watch a lady on YT who gives her dogs spirulina often. Do they need that? Is it too much? Am I wasting money? Am I hurting them in the long run by overdoing something?

Thanks for any insight!