Unity 2D, Import resolution problems

Hey Unity peoples,

    Just started working with Unity2D and I have been trying to import some artwork from flash and have been having some resolution problems. This is what the image looks like in flash http://i.imgur.com/4HB1svA.png , first I exported it at 1920x1080 and I could barely see the image so I exported it again at 4k and got this http://i.imgur.com/Ewfa91x.png its still not the quality I want and I was wondering if anyone knew of any solution's. If any more information is need please let me know.