It is not always a good idea to hire professionals but the expert's fee can be one important thing that needs to be well analyzed. In case of silk flower arrangements for big occasions and places like hotel, lobby it is always a wise decision to hire experts for impressive floral designs and silk flower arrangements.
The judging of the designers work is extremely subjective. Each person that sees the design will make their judgement based upon personal preferences for design styles and flower choices. There is no set of common criteria used in making decisions about whether a person likes or dislikes a floral arrangement. In fact, there is not a standard criteria list which is used by everyone. To further convolute matters, judging actually comes from more than just one or two people _ they come from the recipient, the customer who placed the order, and third party observers (anyone else who sees the arrangement). Therefore it is virtually impossible to please everyone with each design that is created.