The first dress is a tie waist dress and is perfect for the night because its the kind of dress you can wear again! I like it because it has sleeves but it would look good with wedges and a statement necklace. The second one is just a plain black dress, if you want to wear a cool necklace, try and wear one with a high neckline, this one is good because you can easily throw a cardigan or blazer over it, you never know how the weather is going to be in april/may! The third one I like because its peplum, I like peplum because you can eat/drink as much as you want and nobody can tell ;)! All three dresses would look good with both pairs of shoes and both necklaces!