Veggies on steroids

Wow!!! So I went on vacation for almost two weeks (which I'm never doing in the summer again btw) and I came home to giant veggies. Thanks to one of my best friends who took really good care of all my plants, they look amazing.  I had my first kohlrabi out of my garden today and it was delicious.
All my vegetables are doing amazing in the soil mixture I put them in, even my squash are now starting to produce fruit. Here again is what I put into my soil.
In a 6' X 2' X 2' garden box
12 bags 50 L organic all purpose potting soil
1 bag 50 L sea soil
1 bag 50 L sheep manure 
1/2 bag 25 L worm castings
1/2 bag 25 L vermiculite 
1 C Epsom salts
1 C egg shell powder

It's been about 5 or 6 weeks since everything has been put in the garden and we are now starting to eat veggies from it. My peas are blooming and carrots and beets are doing great too. It's a little crowded in there and I will be doing things a little different next year, but I'm quite pleased with how things are turning out.