Remote sensing data for different scales

I'm looking for different satellite data concerning different scales. The first one I'm looking for is remote data for soil sealing and water bodies at a scale of 1:30,000, could be generally everywhere. The other one I'm looking for is for data with Mapping of parks in urban areas and the sub-classes: lawn, bushes, trees, tree groups, water bodies, lane (sealed) and lane (unsealed) at a scale of 1:5000. I was checking the page of USGS but it doesnt really provide a lot of satelitte data for the scales I am looking for. Could anybody recommend some descent pages where I can get this images without have to pay too high amounts to get the info?