These are beautiful sheer panels. 
Not flimsy, they hang very nicely. 
They could be used on their own, however in order to get a fuller look you would need to add panels as the width on these is not substantial. 

My window is 84” wide and I have 4 sheer panels in the middle with 1 heavier drape panel on each end. 
The pattern in the curtain is very pretty and adds a subtle design element. 

The color is perfect and does not have yellow or gray tones. My photos were taken with just the natural light coming in.