Avoid any carelessness in the detail of the dahlia petals that could affect its visual appeal. Don't let the petals look messy or disfigured. Avoid excessive or inadequate lighting that can reduce the sensuality of the petals. Don't add extras that distract or compete with the petals instead of enhancing them. Also avoid any unbalanced or unattractive composition that may diminish the visual impact of the dahlia petals.