In order for me to properly assess what you have I will need see images of the front, back (do not remove from frame) and a clear, in-focus close-up of the signature.
If you had already attached images to your initial posting, they are not showing for me here on my end.
Please send the photos at your convenience. There is not an extra charge to provide more pictures here.
I am wondering if you are still interested in having your item assessed?
Please let me know and do you have requested images available?
I look forward to reading back from you.
Original paintings by Alain Bougu in comparable sizes carry auction estimates in the avreage range of $200 - $300 and they can sell for as high as $500 - $700 on today's auction market. They have been priced up to $2500 by re-seller's on sites such as Ebay, but those have not sold. Bear in mind that an asking price and an actual sale price can be vastly different.
Just checking in to see if you viewed your answer and if you are seeking further assistance?
Please let me know.