Tip:  it is easier to cut larger flowers -- start with the daisy &/or enlarge the patterns! 
Aster:  cut two of the smaller flowers.  Trim the tip of each petal so it has a slightly blunter end.  Twist one set of petals slightly and then glue the front petals to the back petals.  Add a green stem.
Daisy:  cut two of the larger flowers.  Try it with two sets of petals.  Use white paper for the petals and add a small yellow circle at the center!  Add thin leaves with jagged edges.