I like the sentimentality in this poem. It is obvious anyone reading this can see it in the words you use. I am fond of the line "to build her life's bouquet". Seems like her life will be filled with flowers. There are a few errors in grammar as in "lie" should be "lies". The word "own" is unecessary. I would also delete "by her feminity", that adds nothing to the poem and weighs it down. Also I would write it as "her smile like stars". This is just a suggestion mind you but the poem is more powerful this way:
As she lies in the softness
her beauty is magnified,
her smile like stars.
her face adoring.
I bring her flowers
and build her a life of bouquets.
I water them so they don't wither.
I just think it more powerful that way. I really enjoyed the poem. Keep writing and how lucky you both are to have each other.