yes it is fine but resize it. Its too large.
The size is fine. The logo is fine, though I'd say remove the border.
ok, stuff looks good.. but what do a note have to do with computers? or do you singe wile u are reparing the computers? looks good yes, but don't belong together unless u have something with music aswell.. is the text checked? Computer Repair? sounds like you are giving the computer an order.. Reparing? Reparation? or am I completley wrong?
anyways, remove the note, find something else, computers right, not guitars?