Realistic Campfire Loop Animation

I need a short, seamless camp-fire flame that plays forever on a web page. The look should stay realistic but not hyper-photoreal—think naturally moving tongues of fire rendered with moderate detail, no sparks, smoke, or other extras. I generated an image, but the first 3 to 4 seconds are the wrong colors. the file is attached tot he project as an example. there should be no watermark or water marks.

Key specs:
• Canvas: 750 px × 750 px, pure white background so it drops onto any section cleanly.
• Length: at least 8 seconds, no more than 16 seconds.
• Loop: first and last frames must match perfectly; no visible jump.
• Silent.
• Colour palette is fixed to the six tones below—no stray hues:
#2E4E4E, #447578, #55999A, #6ABAB8, #312D2E, #FBFFFF.

Deliverables:
• WebM file meeting all specs.
• MP4 fallback encoded with the same frames.
• (Optional but appreciated) your source file so I can tweak minor timing later.

I will verify that the loop is flawless, the colours match exactly, and the flame reads as a believable campfire within the stated palette before releasing final approval.