Know-How Exchange : Student Questions

I have created a Gantt chart for one of my assignments. I have been requested to make two separate charts for a trade show that will be taking place at the end of the month. The first chart was used to help predict the time frame for specific jobs responsible for the setup of the show. I was aiming to be as realistic as possible with the amount of time I allocated. Jobs for this included planning the budget, booking space, setting up, making sure seating arrangements for complete. The second Gantt chart was for general advertising and promotion. This included tasks such as researching the audience, creating business cards, and promoting online. I am in need of feedback about my Gantt charts preferably from someone who specializes in International marketing to tell me how effective these charts can be and where to possibly improve on.