Nope. The way that Tolstoy portrays the peasants is in no way accurate. While there was a lot of change, modernisation and so on, in general the average life of the Russian peasant in this period was unpleasant, brutish and short. The following quotes are taken from a book called "village life in late Tsarist Russia" by Olga Semyonova Tian-Shanskaia an ethnographer writing in the early 1900s. To a certain extent she was writing to rebuff the very idyllic images which many Russian intellectuals, including Tolstoy, had of the peasants. She embedded herself with them and observed them a year in assembling the notes which eventually went into this work. It seems that the also realised that actually finding out what the peasants thought was very difficult since they tended to lie to her. She was a good water colourist and took to painting in public spaces as a way of evesdropping on peasants so she could observe them without changing their social interactions by her presence. That said, while Tolstoy's portrayal of peasants in his work is clearly idealised, the one which I quote below is possibly biased in the other direction. The author had a very negative conception of peasants and peasant culture. While nothing here is fabricated it is certainly presented in as negative a light as possible.

“young mothers very often smother their children accidentally in their sleep. The mother sometimes places her infant between herself and her husband… she goes to sleep, rolls over onto the baby and smothers it...a good half of women have overlain their child in this way”

She later comments about how she does not really believe the peasant claims to the accidental deaths of children. “There have been two notorious cases of infanticide in the village…in practice the number of these killings is higher… I have always been suspicious of cases of reported accidental smothering of babies since it is very easy to roll over on a baby and intentionally smother it” The outright murder of illegitimate offspring was also not uncommon

“cases of infanticide of illegitimate babies are not at all rare. A married or unmarried woman gives birth alone somewhere in a shed, smothers the baby and dumps it into the river with a rock secured to its neck...in fact in the large village of muraevnia, one or two children are found dead almost every year… recently pigs out by the graveyard the body of a newborn that had turned blue, making it obvious that the baby had been buried only a short time before. No action was taken. Peasants do not like criminal investigations”

Women tended to return to work very quickly after giving birth, normally the week after.

“And the child is consequently neglected; it is left alone in a dirty cradle wearing a soaking wet diaper, criying its heart out in hunger pains and its navel swells and hurts.”

Women had very little medical care after birth and were subjected to some odd medical treatments.

“more often than not, the hard work that follows childbirth results in some degree of prolapse of the uterus… the midwife soaps her hands, forces the uterus into place, then pushes a peeled potato into the vagina and binds the lower abdomen tightly with a handkerchief”

Wife beating and abuse was endemic and impossible to control.

“in the village of muraevnia there was a case of a drunken husband who killed his wife for infidelity. He rolled her braids around his hand and beat her head…. Until she lapsed into a coma and died three days later”

The author was also fascinated and appalled by the way that the peasants treated the animals which lived with them.

"in their treatment of cats, dogs and other animals, ivan and his family can be quite cruel… peasants will torture them just for fun… when I ask ‘don’t you feel sorry for them?’ the children respond ‘why feel sorry? They're not people, just dogs’"

Many peasants also lived in the most awful conditions. For example most peasant houses did not have chimneys (called a black stove) and

“when a black stove is being lighted…. [the smoke] forms a blue and white blanket… a good sized man finds it difficult to stand up when the stove is being fired because his eyes will be in the caustic cloud”

which would then cause a whole host of health problems including cataracts and respiratory issues. There is an awful lot more that I could insert, about alcoholism, poverty and so on. However it makes me unhappy so I am not going to include it.