o3 Mini

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1024 1024">
  <defs>
    <!-- Face skin gradient -->
    <linearGradient id="faceGradient" x1="0" y1="0" x2="0" y2="1">
      <stop offset="0%" stop-color="#fde8d0"/>
      <stop offset="100%" stop-color="#f5d5b0"/>
    </linearGradient>
    <!-- Hair gradient -->
    <linearGradient id="hairGradient" x1="0" y1="0" x2="1" y2="0">
      <stop offset="0%" stop-color="#3b2f2f"/>
      <stop offset="100%" stop-color="#1a1414"/>
    </linearGradient>
    <!-- Soft shadow filter -->
    <filter id="softShadow" x="-20%" y="-20%" width="140%" height="140%">
      <feGaussianBlur in="SourceAlpha" stdDeviation="5" result="blur"/>
      <feOffset in="blur" dx="3" dy="3" result="offsetBlur"/>
      <feMerge>
        <feMergeNode in="offsetBlur"/>
        <feMergeNode in="SourceGraphic"/>
      </feMerge>
    </filter>
    <!-- Teeth mask -->
    <mask id="teethMask">
      <rect x="420" y="680" width="180" height="30" fill="#fff"/>
    </mask>
    <!-- Clipping path for subtle facial shadowing -->
    <clipPath id="faceClip">
      <path d="M300,250 C280,500 540,800 720,250 Z"/>
    </clipPath>
  </defs>

  <!-- Face Base -->
  <g id="face">
    <path d="M512,130
             C400,150 300,300 300,500
             C300,700 400,870 512,890
             C624,870 724,700 724,500
             C724,300 624,150 512,130 Z"
          fill="url(#faceGradient)"
          stroke="#d4a377" stroke-width="2"
          filter="url(#softShadow)"/>
  </g>

  <!-- Hair Layer -->
  <g id="hair">
    <path d="M300,250
             C280,200 340,100 512,110
             C686,100 744,200 724,250
             C800,260 860,300 840,360
             C820,420 780,480 724,500
             L300,500
             C280,450 260,360 300,250 Z"
          fill="url(#hairGradient)"
          stroke="#1a1414" stroke-width="2"
          filter="url(#softShadow)"/>
  </g>

  <!-- Left Eye -->
  <g id="leftEye">
    <ellipse cx="420" cy="500" rx="40" ry="25"
             fill="#fff" stroke="#000" stroke-width="2"/>
    <ellipse cx="420" cy="500" rx="15" ry="15"
             fill="#000"/>
    <circle cx="430" cy="495" r="5"
            fill="#fff"/>
  </g>

  <!-- Right Eye -->
  <g id="rightEye">
    <ellipse cx="600" cy="500" rx="40" ry="25"
             fill="#fff" stroke="#000" stroke-width="2"/>
    <ellipse cx="600" cy="500" rx="15" ry="15"
             fill="#000"/>
    <circle cx="610" cy="495" r="5"
            fill="#fff"/>
  </g>

  <!-- Eyebrows -->
  <g id="eyebrows">
    <path d="M380,460 C400,440 440,440 460,460"
          fill="none" stroke="#1a1414" stroke-width="6" stroke-linecap="round"/>
    <path d="M580,460 C600,440 640,440 660,460"
          fill="none" stroke="#1a1414" stroke-width="6" stroke-linecap="round"/>
  </g>

  <!-- Nose -->
  <g id="nose">
    <path d="M512,500 
             C500,530 524,580 512,600"
          fill="none" stroke="#d4a377" stroke-width="4" stroke-linecap="round"/>
  </g>

  <!-- Mouth and Teeth -->
  <g id="mouth">
    <!-- Lip base -->
    <path d="M420,680
             C460,720 560,720 600,680"
          fill="#b5523d" stroke="#900" stroke-width="3"/>
    <!-- Teeth within the mouth using a mask -->
    <rect x="420" y="680" width="180" height="30" fill="#fff" mask="url(#teethMask)"/>
    <!-- Lip outline detail -->
    <path d="M420,680 C460,700 560,700 600,680"
          fill="none" stroke="#900" stroke-width="2"/>
  </g>

  <!-- Expressive Details: Wrinkles -->
  <g id="wrinkles" opacity="0.5">
    <path d="M450,550 C460,555 480,560 500,562"
          fill="none" stroke="#a67c52" stroke-width="2" stroke-linecap="round"/>
    <path d="M550,560 C570,565 590,565 610,560"
          fill="none" stroke="#a67c52" stroke-width="2" stroke-linecap="round"/>
  </g>

  <!-- Facial Highlights -->
  <g id="highlights">
    <ellipse cx="512" cy="400" rx="80" ry="30"
             fill="#fff" opacity="0.2"/>
  </g>
</svg>