Hi Mrs. Lai,
How nice of your husband to get you a pearl set! Smart man! Pearls are always a nice gift.
The world tends to value
round pearls because they are more rare (not necessarily more beautiful.) From this photo the earrings appear to be flattened, button shapes so these would be graded lower than round pearls, however many of us find that buttons are easier to wear, especially as the size goes up. Talking on the phone with a round pearl stud on one's ear can be hard, and button pearls don't sag the way round ones do.
It looks like the bracelet pearls are a little off round/egg-shaped but maybe that is just the lighting in the photo playing tricks on my eyes? Off-round pearls are graded lower than round ones. But if they have good luster, they are pretty nonetheless! In fact, I would be more concerned with luster than shape. A pearl is nothing if it isn't lustrous, and a lustrous pearl can be any shape and still be stunning!
Most of my earliest pearls were off-round, lower price pearls and they had lots of surface flaws. Although I have bought higher quality ones since then, I still enjoy wearing my first ones.
I think your appetite for pearls has been stimulated and that you and your husband will be shopping for more pearls in the future.