I doubt anyone will ever be able to look at your plant and tell you the strain, not with any degree of accuracy. There are thousands of strains, and the differences between one and another are often so minute that the only way to really know is to buy the seeds from a reputable seed bank AND be willing to trust that they sent what you ordered. The best anyone is ever likely to be able to tell you, just from looking at a picture, is whether it's an indica- or sativa-dominant strain.