This is correct if somewhat archaic grammar, "find" meaning "see" -- the one extra word is the repeated "please" on the second independent clause, which results from combining two sentences.
In modern English, one might say "Please see the attached photos of my paintings, on which I would appreciate your feedback."
No this is not correct use of kindly
It should be "Please find attached my husband's insurance card".
Please find attached my repairing offer confirmation.
Almost but not quite. The grammatically correct wording is "Please see the attached agenda." As a shorthand, you could also say "Please see agenda (attached)."
Please find attached the leave schedule of all staff for the holiday
No this is not correct use of kindly
It should be "Please find attached my husband's insurance card".
Please find attached my repairing offer confirmation.
Almost but not quite. The grammatically correct wording is "Please see the attached agenda." As a shorthand, you could also say "Please see agenda (attached)."
Please find attached the leave schedule of all staff for the holiday
transffered complete
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
No, it is correct grammar, not a correct grammar.
It would be grammatically correct to say: Please find the attached.... it does not make much sense to write both kindly and please since both almost mean the same.
"On a train" is correct grammar.
no_____If the sentence is You do do that (meaning You are in the habit of doing that) the grammar is perfectly correct and the sentence 'does have correct grammar'.
"July has just been started" is not correct grammar, instead the correct grammar is "July has just started."