Dont's :
Do not use images print screened from music videos as they will appear pixelated
Do not stretch images
Only use effects is they suit the genre
Have a valid reason for using font not just because you like it
Do's :
Use Clear font
Use a layout that follows the rules of thirds of composition
Use appropriate industry logos e.g : Record company logo's
Use clear photo's that are in focus
And most importantly BE CREATIVE !!!!!