i too find it very hard to bilieve its your first model seeing as how clean the geometry... i could see its your first model with maya and you had experience with 3d modeling... but nope....

even with a tutorial i find it highly unlikely you could make that clean a model. Im on my 20th something model and even with a good tutorial it wouldnt come out that precise... although the top of the head looks a little long it make the forehead a bit smaller.