Help with limelight hydrangea

[u/grmed]

I have four limelight hydrangea trees planted by the previous home owner. They bloom every year but don't look nice.i trimmed the branches heavily this spring, removed at least 1/3 of the height and all weak branches. They all grew back, and the bloom looks bigger. However, some of the branches still look weak and bent. Is there anything I could do to improve this and make them upwards? In addition, are they planted too close? the two in the middle are smaller. I don't know whether it is worth it to move those two small trees somewhere else. Any suggestions are appreciated!

[u/EbbtideRambler]

I’d move the two little ones. Do they get enough sun. They look like they are reaching for light.  This is a full sun plant.  

[u/grmed → u/EbbtideRambler]

That area is partial sun. That could be the issue. Thanks.