Selfies allowed in Italian Museums

A recent Italian law allows museum visitors to take photos of artworks exhibited in all Italian museums. In particular young people will be able to use their own smartphones to take selfies with a artwork behind their back.
There is both positive and negative feedback about this change.
The traditionalists think that this is damaging for people who want to truly enjoy art. In fact, it could turn out that a long queue develops in front of famous pieces of art. Secondly, people that are taking pictures are not looking at the art object, and doing so, they don’t appreciate it.
On the other hand the supporters of this transformation think that there will be many benefits: first of all, more people will enter a museum, so more money will go into the treasury. Secondly photos on social networks will give Italian museums more exposure, so tourism will be promoted. Finally the collective artistic conscience will be enhanced.
Thank you for your corrections.

Selfies allowed in Italian Museums

A recently introduced law in Italy A recent Italian law allows that museum visitors to take photos of to artworks exhibited that lie in all Italian national museums. In particular young people will use their own smartphones to take selfies with a piece of artwork behind their back them.
There are positive and negative feedbacks about this change aspects of this initiative.
The Traditionalists think that this is a damage for poses a problem to people who want to truly enjoy truly art. In fact, it could turn out [I guess you could use this, but I don’t think you should] that a long queue would be set up behind in front of  famous pieces of art. Secondly [you cannot start enumerating from number two] people that  who are taking pictures are not watching really looking at the art object artwork and doing so, they don’t relish in it.
On the other hand [you can't say on the other hand without having previously said, on the one hand]the supporters of this transformation innovation/initiative think that there will be many benefits: first of all, more people will enter a museums, so more money will go into the treasury. In the second place Secondly, photos on social networks will give Italian museums more exposure, so tourism will be promoted [which will promote tourism: your sentence is correct, but this sounds better].

Finally, the collective artistic conscience consciousness of the artistic collective will be enhanced.
Thank you for your corrections.