Ishna Ji..would you be happy to hang a picture i send you that purports to be of YOUR DADDY/MOMMY JI ? Be reminded that the picture may not be remotely like your daddy and may even show him smoking/indulging in something he never did or discouraged actively ? And how would you feel IF all the guests to your house thought ..wow.your daddy looked like THAT ?? He really DID That too ??
Guru Nanak ji never had a companion called Bala..yet many pictures show this personReference:: Sikh Philosophy Network http://www.sikhphilosophy.net/sikh-sikhi-sikhism/38774-place-of-idol-worship-pictures-sikhi.html
Guru nanak ji discourages use of Malas and rosaries as unnecessary props..yet his pictures show a MULTITUDE of maalas..on his turban, around his neck, in his hands etc
Just a few examples...