If you are looking for a quick and easy photo editor with a great amount of editing facilities and an excellent preview functionality, and if you are too scared to get your hands-on Photoshop then the free version of BeFunky may be a good choice. BeFunky is an online image and graphics application with photo effects and tools for enhancing your photos, to combine multiple photos into one or for creating banners, flyers, cards etc. The free version is already well packed with the essentials of photo editing (cropping, resizing, exposure control, background removal, adding photo effects and filters …) Really easy. All is done online, but you can upload and save to your own storage spaces. The free version gives you all the basic functionalities but the paid version offers obviously more. You can try for yourself here.