Not seen either but FWIW I'd give both a miss.
Laura: first AW review refers to a different girl - Kim (strike 1); A google search on her number also links to pics of another girl on a different punting site (strike 2); something looks odd with her body: top half looks alright but she's got chicken legs (strike 3 IMO). Oh yeah, and if I then checked UKP the 2 negs are for girls called Amy and Kim. B&S territory.
Emma: little to go on based on a cursory search. However, all those ticked services (Anal, CIM, being filmed, fisting) for £100 all in on a reasonably fit bod? No way. Profile says UK; Segei says Spanish; gut says Rom.