they look fine to me..the area looks very nice but I don't think u have space for even 1 much less 2..show u a pic of mine..it's about 5 x 5

Yeah, blooms starting is always a goof thing.

Hydrangeas are very water 'sensitive' so I would address any soil moisture issues first and see if they make any difference with the curling. And keep an eye for leaf curling insects as they love Annabelle-like hydrangeas at this time of the year (May-June).

Try giving the plants more space next spring and 1 gallon (3.8 liters) per watering when the soil feels almost dry or dry if you insert a finger into the soil to a depth of 4 inches (10cm). Also, keep them well mulched, about 3-4" (7-10cm) up to the drip line. Aim to provide them with soil that is evenly moist, as opposed to having periods of dryness then wetness then dryness again.

I agree with Nicholsworth that this spot is not a long-term home for a Hydrangea arborescens like Incrediball, and for two reasons.

One is due to their location of afternoon sun and between a dark masonry wall and a masonry walkway, this area will be quite hot. H. arborescens likes shade during the hottest part of the day, so there will always be water stress and this pretty plant will look less than ideal.

Second is size . . . the smallest you can comfortably maintain this plant would be 4' -5' tall by 4' -5' wide. The only way to keep it that size would involve digging out suckers annually, and annual digging would disrupt your other shrubs (boxwood?) planted along the front. I don't think you have even that much space, let along the space needed if you don't remove suckers promptly. H. arborescens will sucker, whether Incrediball or Annabelle or any of the other selections, something that often isn't shared with buyers, and when I was unable to remove suckers from a single Annabelle plant for several years due to a knee injury, this is what happened. Mine is now wrestled into submission, but I still expect it to take up an appreciable amount of space in this garden bed.

Yours really are a case of right plant, wrong place, and IMO it would be better to move them now, since they are relatively newly planted. Dig your new holes before digging up the Hydrangeas, and if the weather is supposed to be hot, rig some shade cloth or a lawn chair or something to give them all day shade until you have a cooler or rainy spell of weather. They will do best with a good amount of space between them and any neighbors and shade for at least the hottest part of the afternoon. Mine pictured above get shade from around 2 pm through the rest of the afternoon due to the building which is to the west of them.

The young plants look fine to me. Usually these easily outgrow insect damage and even fungal issues.

However, yep they also easily will engulf at least that middle boxwood in a few years' time, so you'll want to probably move that one elsewhere when you go to move the one Annabelle.

I "second" the others' comments on outgrowing the space. I have 2 gigantic incrediballs (> 6 years old) that, because I didn't prune them this ONE spring (usually I prune them down to upper thigh high)...they are now towering at nearly 6-7 feet and probably around 4-5 feet wide. I'm in NJ (6b). One mature Incrediball, even pruned down, can easily fill most of your designated bed space...so it depends if this is the look that you are going for or not.

Now I need to move them this summer, & it's a task that I'm probably going to have to pay someone to do, because of their size. In hindsight (and with the experience I have now), I would have sited them elsewhere with more room to grow. Hopefully, my pain will be your gain!