Why some of my comps are pixeleted and some are not

Hi,

When I finised rendering AME I can see some of the comps are blurry and some are not. flowers I have drawn in AI. later converted in shape layer in AE. But the comp 'Bee' I drew in AE., its not blurry at all,  all the comps are 1920x1080. I dnt understand why its happening. Please help me.