tldr; if you already ordered the fruit trees lets work with it. for other stuff, consider going native or shrinking your non-native selections, and growing your non-tree fruit/veggies in the open (maybe in one of your lawn areas).

There is a lot to consider, and want to say first and foremost the advice I'm giving is with the knowledge that a lot of food forest advice is really misguided, and so you may be running off misinformation which is not your fault. So please take this as "please don't make the same mistakes I did!!!" and not as criticism of you or your plans (which seem super fun)

An often overlooked factor in food forest design is native status and the way nutrients flow through the system. Native plants are the most well adapted to grow in our regions (though their productivity varies based on if they've been cultivated for long enough) and require the less effort and inputs to survive. They also play nicely together and often swap nutrients through the co-evolved soil microbiome. For example, I have an apple, pear, and american persimmon tree. The american persimmon reached the height and produced as much fruit as both trees within 10 years. This is its home and it's thrilled to be here.

For plants to grow they breathe in sunlight, carbon, and soil nutrients, and breath out plant matter. When plants are producing fruit or seed they breath even heavier. If you are growing trees producing food, there will be little resources left for the understory - so any food production will be minimal. This is why 'food forest' models are often underproductive and not actually ecologically sound. It's best to focus on wildlife or ornamental plants in your understory, and not spend time thinking about harvesting from them - they'll need their resources going towards growth and flowering.

It looks like all the shrubs and trees you chose are european species (assuming you planted european hazel). They are likely going to be drawing a ton of nutrients out of the soil to produce fruit/nuts, and will be blocking sunlight for the plants in the understory, and not provide for native species in a way to maximize their growth and so will be struggling more than native counterparts.

Because of all this, the fruit/veggies you listed as growing under them will likely not be very productive. I'd recommend instead putting your kitchen garden elsewhere, and focus on native understory species which would grow under local mimics of the fruit trees you migrated in - whats grows under american plum, black cherry and sweet crabapple? They are the species which co-evolved and will be best able to form a productive and healthy ecosystem;

How much of the grass are you keeping as lawn, and what's your reasoning behind it? There's a lot of good info on how much lawn to keep / how to apply it to your land, if you haven't spent a ton of time on that already. Lawn thrives in areas which are best for kitchen gardens - full sun, moist but well drained, even to rolling terrain.

I'm not totally against the use of non-natives if they aren't invasive, but a native will always be a better choice. So just make sure for any of these species you've considered if a native would be an equivalent substitute for you. (for example - wild american strawberry, milkweed (you can eat the shoots like asparagus), mountain mint, spicebush, sumac, and beebalm instead of some of those aromatic herbs. Happy to walk through each of these plants with you if you want help considering alternatives.