XIAOMI REDMI NOT 10 PRO (BEDROCK) PNG SKIN IMPORT ERROR

Long story short: the problem is that I can't import a Minecraft skin via a png image: I tried to import a skin: without success an error message is displayed "it's not a Minecraft skin" so I asked a friend to send me his Minecraft skin which worked for him have imposed (the skin is on the images below) I then installed his skin that he sent me and I tried to import it on my Minecraft (bedrock) but the error message persists : I Think it's from Xiaomi's image gallery which doesn't take the right image size