Many student artists work from photos and thats likely how this was done !! You probably have an acrylic on watercolor paper !! The thicker tecnique is called impasto and basically just means thick paint !! He didn`t do a bad job except for the prep for framing !! That waving is common if you don`t have the equipment for keeping it flat !! Thats one reason I did not like working on paper !! Prior to painting with watercolors the paper is soaked then allowed to dry to the moisture content the artist likes to work with !! Some like it very wet and some do not !! Its an individual preference !! When it dries it waves as yours has done !! Pro`s have stretchers to keep it flat !! One way that might help is to take it out of the frame, lay it face down on a good flat surface and press it with an iron on medium heat, do not use the steam on your iron, just dry heat and light pressure !! For stubborn spots use a mist sprayer with clean water to dampen the back lightly then press again !! When finished place between heavy books, or two clean glass panes, or on the table with heavy piece to cover and let sit a few days, then reframe with good archival backer board and a glass front with spacers !! You can buy this at frame shops, hobby shops and sometimes Wal-Mart !! As far as value,, people will always buy pictures of Jackie Kennedy no matter who painted it !! But there is no collectors value !! I would say it might bring $50. to $75. if properly framed just because of who it is !!
