There is hereby established a Design Review Board (the Board) which shall consist of five members who shall be residents of the Village and shall serve without compensation. The members of the Board shall be persons qualified, by special training and experience in architecture, art, landscape architecture, land development, community planning, real estate, engineering, law or other relevant business or profession or by reason of civic interest and sound judgment, to determine the effect of a proposed building or structure or alteration, a group of buildings or structures or a plan of building development on the desirability, property values and development of the surrounding areas and the Village as a whole. In addition, two alternate members with such qualifications may be appointed to the Board for a one-year term. Each alternate member shall be entitled to serve and function in the place and instead of a regular member when an alternate's presence is necessary to constitute a quorum of the Board on account of the absence or inability of a regular member to serve or function. The members and alternate members of the Board and the Chairman shall be appointed by the Mayor, subject to the approval of the Board of Trustees. Of the members first appointed, one shall hold office for a term of one year, two for a term of two years and two for a term of three years from and after their respective appointments. Their successors shall be appointed for a term of three years from and after the expiration of the terms of their predecessors in office. The Board of Trustees shall have the power to remove any member for cause. If a vacancy shall occur otherwise than the expiration of a term, it shall be filled by the Mayor for the unexpired term. The Mayor shall appoint a Secretary of the Board who need not be a member of the Board and who shall serve at the pleasure of the Mayor.