Mix mustard with sour cream, I took 30% sour cream.
Put all the ingredients in layers in a salad bowl. However, I have a homemade mold cut from a piece of a liter beer can, painted with spray paint, handmade, so to speak
First, thinly slice the cucumber, you can add a little salt, add a little sauce.
Add the corn.
Thinly slice the avocado into strips, I added a few drops of lemon so that the avocado does not darken quickly and does not spoil the appearance of the salad.
Spread with the next layer, add a little sauce.
Put the crab sticks and a little sauce in another layer.
Cut the celery into thin slices, lay out the last layer. Take out the mold, pour the remaining sauce on top, decorate as desired.