Dear all,

When I make a beautiful scene in illustrator or photoshop with high resolution than when I add it to cartoon animation the resolution decrease (become low). I do not know why, and also after rendering the resolution is not what I expect. 
For example, The image that I create as a scene in photoshop is like this :
https://prnt.sc/ofbp77
And when I add it to cartoon animation became like this :
https://prnt.sc/ofbpfe
The images that I add to cartoon animation has 300 dpi and with big size and the format is PNG- even if there is a background. 
How can I solve the issue?

Best regards.