Uk passport renewal countersignatory Q?

hey im renewing my passport and i got a family friend who is a manager to countersign it for me but the ballpoint pen he used has smudged on the back of my passport photo, although it is still readable, will it be accepted? also, his signature has touched but not gone beyond the border on the signature box, will that be ok? i am using the post office check and send but i need to be sure because im flying on the 5th of july!