I added more mayonnaise, and used a combination of Dijon and English mustards. Omitted the wax beans as I couldn't find fresh, and I didn't think canned would be good. Also cut back on the dill ...
This turned out alright once I added more mayo, and used dijon mustard.(tried a little of two other mustards, but not good) Also, think this needs to be "cool" not cold when you eat it.