All images in XPS look identical when loaded from a byte array

var view = new StackPanel
{
    Orientation = Orientation.Horizontal,
    Children =
    {
        new Image { Source = BitmapFrame.Create(new MemoryStream(pic1Bytes), BitmapCreateOptions.None, BitmapCacheOption.Default) },
        new Image { Source = BitmapFrame.Create(new MemoryStream(pic2Bytes), BitmapCreateOptions.None, BitmapCacheOption.Default) },
    }
};
using (var xps = new XpsDocument(@"1.xps", FileAccess.Write))
    XpsDocument.CreateXpsDocumentWriter(xps).Write(view);

private static BitmapSource ImageFromBytes(byte[] bytes)
{
    var bmp = new BitmapImage();
    using (var stream = new MemoryStream(bytes))
    {
        bmp.BeginInit();
        bmp.CacheOption = BitmapCacheOption.OnLoad;
        bmp.StreamSource = stream;
        bmp.EndInit();
    }
    return bmp;
}

// usage example:
new Image { Source = ImageFromBytes(picBytes) }