Fresh and artificial flowers will always look different from each other. Both can be very beautiful and can range in price from frugal to extravagant.
Both have their advantages and disadvantages. It is possible to have fresh flowers within your budget if you go with flowers that are in season and are a little more sparing with using flowers.
Speak with both your local florist and your local craft store to see the entire range of flowers that are at your disposal.
Some give and take in other areas of your budget can give you room to have the flowers that you really want. If you have a church home that will not charge you a large fee for a wedding site, then that may give you your extra money for flowers.