HELP WITH ARTIST NAME ON NUDE, PINK MARBLE(?) STATUE

This belongs to a friend of mine who owns a small thrift/second hand store in Hialeah (west Miami - little Cuba area) - he found it in a storage unit & I am thinking of buying it (to resell) but need some help/
Can anyone make out the artist's name? I see Esteylin but nothing comes up with that name.
What is it made of? (I am thinking Marble or quartz?)
Any idea of it's value? If I bought it for $400 could I make a profit selling it?
Thank you in advance for any info!

 

the material looks so porous as to be a mold of some sort....
i've never seen a natural stone look like that.....that wasn't lava rock..
just sayin...

for 4 bills.....you gotta like T & A to pay any more for that !!! imo....

 

I figured it was a cuban artist!

 

Siggy Esteylin B?