Help with Signature. Is this Oil or Acrylic?

I have no idea what that first letter is and if it is the first letter of the last name or the initial for the first name. My guess was Y. I darkened one of the close-up photographs but I don't think it really made a difference. Is the rest Indin or Tndin?

I think this is acrylic but I'm not sure. The way the paint is blending in that shiny area in the last photograph has some qualities of oil paint. What do you think? Thank you in advance.

 

Jf you need sunglasses it's probably acrylic. That's very bright.

 

Thank you for looking AF. That was my original thought.

 

Hi,
Add impasto The paint is "laid" on very thickly.
greg

 

Thanks Greg, will do.

 

I wanted to reply to this without the images, but hit Reply and it loaded them and I can't get rid of them! Anyway, to me it looks like the first lower-case letter is different from the last letter, so I don't think they are both N. Could the first lower-case letter be an A?

 

I think that probably is an A Figtree. Thank you.