Child killer Aaron Campbell has lodged an appeal against his sentence for abducting, raping and murdering six-year-old Alesha MacPhail.
The 16-year-old was jailed for life with a minimum term of 27 years for his crimes on the Isle of Bute last July.
He was convicted last month at the High Court in Glasgow, where a jury unanimously found him guilty following a nine-day trial.
The Scottish Courts and Tribunals Service confirmed Campbell had lodged the appeal on Thursday.
The teenager maintained his innocence during the trial, where he blamed the death on the girlfriend of Alesha's father, before finally admitting his crimes ahead of sentencing.
Judge Lord Matthews said social work and psychologist reports "had painted a clear picture of a cold, callous, calculating, remorseless and dangerous individual".
He said Campbell had to stop himself laughing at points during his trial and showed a "breathtaking lack of remorse" throughout.
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A psychological evaluation carried out on 9 and 10 July last year highlighted no issues to suggest the teenager was not of sound mind when he murdered Alesha.
Campbell abducted the little girl at knifepoint from her grandparents' home on the Isle of Bute in July 2018.
The teenager, from Rothesay on the Scottish holiday island, then carried her half a mile to a woodland clearing where she was raped and smothered to death.