Traditional characters are much more suitable than Simplified style for Chinese calligraphy (handwriting).

祝雙親「福如東海、壽比南山」。 I wish my parents have a long life & boundless happinese.

你真孝敬啊。呵呵，难得。 ni zhen xiao jing a. he he , nan de .

谁知寸草心,难报三春晖 this is from a peom《游子吟》 慈母手中线，游子身上衣。临行密密缝，意恐迟迟归。谁言寸草心，报得三春晖？慈祥的母亲用手中的针线，织出了游子身上的衣服。儿子临走前母亲把衣服缝得又密又结实，担心儿子一下子回不了家，在外面受冻。唉，谁说小草报答得了三春阳光给它的养育之恩呢？ the son - the grass mother - the sunshine of three springs it means the grass can't pay back for the sunshine's fostering. what is we can't pay back for our parent's love and harship.

福如東海、壽比南山 wish you have a long life boundless happinese