Making the employee pay taxes

Q: An employee works for a company and his stipulation is not set at the beginning. He is paid an amount less than the market rate for such a job. Secondly, the employer places the entire burden of taxes on the employee, whereas the employer is required by law to pay 7.65%. The employee works because he cannot find another job currently, is this Zulm on the part of the employer?

Is it permissible for him to take on clients on the side and complete work in the office and keep the compensation for that? What if he pays for his own supplies such as papers, pens, etc?

Photos and Videos

Q: I have a few questions regarding photos and videos. Is taking pictures and videoing allowed in Islam? By pictures and videos I mean normal pictures and videos by phone or camera. Pictures and videos in special events such as wedding, party etc or in a normal day? If it is not allowed, will we be punished for doing it? If I die and I have my videos or pictures in this world, will I be forgiven or punished? Also can I perform namaz in a room or place where there are framed pictures of my family or myself? Will my namaaz be accepted if I pray in such a place? Can I perform namaz in a place where there are pictures behind me not where I am facing?

Changing one's intention regarding giving something to someone

Q:

1. I have made niyyat to give someone something then later I changed my decision and thought I will not give. Is it allowed for me to change my decision after making niyyat to give to that person?

2) I have made niyyat to give a dress as charity to Zaid, then is it allowed for me to give the same dress for Umar as charity, because I found Umar is more deserving than Zaid? Can I change my decision this way? Whenever I make niyyat to give something to someone is it necessary that I give that thing to the same person I made niyyat for or I can give it to someone else whom I like?