[phenixbb] Improving picture quality of ED map in PYMOL

Dear Friends, Sorry, for the of topic question. Does anyone can tell how to improve the quality of a picture showing the electron density map of dna in a complex using PYMOL. I created the figure, but not happy with the quality as it is now. Might be there is a way to improve which I don't know. I want the lines in the mesh to be more sharp and fine. Any suggested program to prepare a publication quality figure to show the ED map would be of great help. Thanking you in advance... Raja