If you really want to do this yourself and its not too bad i have seen worse
then you must...
start from scratch in InDesign (if your not sure what al the set up guides are ask here or google)
Make sure all you images are tiff and CMYK
Find a font family that gives you a range of bold, regular, light etc... the type is to boring with no hierarchy at the moment
Think about hierarchy, what do you want to pop out first, the title on your front cover is a good starting point and make people want to read the inside text maybe bullet points or spliting the text up into sections etc.
Get rid of the speach bubbles! everyone will know they are quotes you dont need them and they look a bit naff. This would be a good page to play around with colour and create a really eye catching page
But dont go crazy maybe pick some colours from your logo/pictures and use diffrent shades etc. Make the text more interesting too.
And sort the back page out! why all the black? get a really nice back image maybe a map or make the map lower down and have a main image something up lifting that will end your brochure on a positive note
Hope this helps