Mustard sauces - too much mustard, consider adding more cream or something.
Recommended topping: sausage (krakowska), onion, pickled cucumber.

Tomato sauces - the second one (with mexican sauce) is better.
Recommended topping: salami, onion, mushrooms, pepper.

Cream sauce - be careful with the danish sauce.
Recommended topping: tuna, olives, spinach & garlic slices.

More photos on flickr.

Mustard sauce 1:
- mustard: 3 tbsp
- mayonnaise: 1.5 tbsp
- ketchup: 1.5 tbsp
- sour cream: 1.5 tbsp

Mustard sauce 2:
- mustard: 3 tbsp
- mayonnaise: 1.5 tbsp
- sour cream: 3 tbsp

Tomato sauce 1:
- tomato purée: 3 tbsp
- mayonnaise: 1 tbsp
- sour cream: 1 tbsp
- ketchup: 1 tbsp
- hungarian sauce: 2 tbsp

Tomato sauce 2:
- tomato purée: 3 tbsp
- mexican sauce: 6 tbsp
- barbecue sauce: 1.5 tbsp

Cream sauce:
- sour cream: 6 tbsp
- sweet cream: 3 tbsp
- danish sauce (mayonnaise based with vegs & curry): 1 tbsp

Mix it.