Regional Court convicted 17-year-old Emelin

By the regional court, 17-year-old Emelin was sentenced under paragraph “g” of part 2 of article 105 of the Criminal Code to 10 years of imprisonment and according to part 1 of article 126 of the Criminal Code to 5 years of imprisonment. On the basis of part 3 of article 69 of the Criminal Code of the Russian Federation for the totality of crimes, he was finally assigned 15 years in prison with a high-security prison.
Circumstances mitigating punishment, the case is not established.
As circumstances aggravating the punishment, the court recognized the following: committing a crime while intoxicated, committing a crime as part of a group of persons by prior conspiracy, the onset of a grave consequence - the death of the victim, as well as a relapse of crimes, as Emelin was previously convicted under Part 1 of Article .131 of the Criminal Code to 3 years in prison.
Does the Criminal Code allow the recognition of the above circumstances as an aggravating punishment?
Does the court verdict comply with the rules of the court taking into account circumstances mitigating and aggravating the punishment?
What are the features of sentencing minors?
Does the court verdict comply with the criminal law in terms of assigning a minor a term of final punishment for the totality of crimes?
Does the court verdict comply with the criminal law regarding the designation of a correctional facility?
Should the type of correctional institution be changed when Emelin reaches 18 years of age?