My first garden!

Hello all.

I've always lived in houses with no yards or apartment complexes but recently moved into a house with a yard. For a few years I've been making terrariums and selling them as a side job but have never had the chance to grow a garden! A few weeks ago I tilled up a patch of soil and planted some vegetable seeds. I found an abandon wood post and some old bricks to edge it off. After watering them this morning I decided I'd take a picture and make a post here. :)

I am growing:

-Yellow Dutch onions
-Green Onions
-Sweet mini peppers (tallest plant in back)
-Purple cherry tomatoes (started growing this plan before transplanting it outside)
-Regular red tomatoes
-Peas (the strip on the left coming up really well)
-Chinese Kale
-Broccoli
-Lettuce
-I have also planted a mix of flowers around the perimeter

Can't wait to start seeing some grown vegetables!

Any advice for my first garden?