Handwritten Signature Analysis on Scanned Image

I'm looking for an expert to examine a handwritten signature on a scanned image. The main goal is to determine whether the signature has been cut and pasted or signed directly on the document. It is Viboonrat Holdaway signature

Ideal Skills and Experience:
- Expertise in signature verification and forensic analysis
- Proficiency in examining scanned images
- Attention to detail and ability to identify subtle discrepancies