It is a good idea to do an evaluation of your event, as this will highlight areas of success and what could be improved, the financial viability (did you break even or make a profit), as well as establish the strengths and weaknesses - this will help you when planning for future events. You can also go further with your evaluation in using the information you have gathered during the event to find out if you reached your target audience, i.e. who attended, their ages and interests and whether they were local to the area etc.
Have a read of the information Evaluation guide below:
Voluntary Arts Network: Tear up your tick boxes - a guide to the creative evaluation of participatory arts projects

This guide's aim is to suggest how arts organisations can begin to monitor their work, evaluate what they do, and share results with partners, funders and their own workers. We feel that Monitoring and Evaluation is not only increasingly important, but can be creative and enjoyable too. For the best results, try to build monitoring into your project at the start, and treat it as an integral part of the project. For more information please click the pdf's below.
Part 1: Information on why and how to evaluate.
Part 2: Examples and Monitoring Materials.
COMING SOON:
South West Tourism: Evaluation Toolkit
Events, Carnivals and Festivals (ECF) generate a considerable amount of visitor numbers often with unrecognised impacts on the local area. In order to fully understand the impact an evaluation toolkit is being designed to assist the region so information can be collated on a consistent basis and learning can be shared to enhance future provision. The toolkit will be available to evaluate the Environmental, Economic and Community impacts of Events, Carnivals and Festivals. This will help to understand their strengths and weaknesses, impact on the local environment, economy and positive or negative community influences.