Test shooting Beach Scene

I have got a scene which takes place on holiday the scene itself is on the beach. Given that my film is postmodern the use of a poster as background should work well to signify the beach and a hot day. The lighting is not good in the pictures and I will have to get the actor to sit a little way away from the poster so that it can be backlit.

Obviously the actor will be in a T shirt or topless and I will also use glycerin to create an authentic  sweaty look and atmosphere. I think the main problem here is that my face has not been lit however the background suggests bright light. So to make the cheat more believable ill need to use some careful lighting.