21 week anatomy scan

Sa

Went to have my ultrasound at 21 weeks to test for Down syndrome and other things. They found a white spot in her heart and one of her kidneys is enlarged. They also said my amniotic fluid is low I think from not drinking enough water which could cause the larger kidney. They took a blood test and I’m getting a specialized ultrasound done, but can anyone tell from the ultrasound if she looks like she might have down syndrome?