Welcome and thank you for requesting me.
Please tell me the medium the artist used - oils, watercolors, etc.
Also what is the subject matter?
As I began my research for your question, I realized that I am going to need a photo of your painting as well as the signature on it.
You may need to use the macro function (flower icon) of your camera to get a good clear photo of the signature.
If you cannot get a good photo, then sketch the signature and take a photo of the sketch.
To send photos you may use the "attach" or "add" link or "paper clip" you see on your reply page.