Anterior Placenta Ultrasound?

So at my 20 week appointment, I got my first 3D ultrasound. It was blurry. (Pictures below with each week) I have an anterior placenta, so thought maybe all of my ultrasounds would turn out this blurry. Did anyone else have this issue with/without anterior placenta?

20 weeks

My 26 week appointment, we actually saw her face, so figured with her getting bigger, it would be better ultrasounds.

31 week ultrasound turned out great.

Then 32 week ultrasound was blurry and her face was buried into my placenta during this one.

Then 33 week, todays ultrasound. They all turned out super blurry.