The first brown one looks like engine oil. Common leaks are the oil filter cap, or the oil filter housing to engine block mount.
The second reddish one looks like power steering fluid. Common leaks are through the breather hole in the cap when over filled, or a bad cap seal. I replaced my whole power steering reservoir (with build in filter) recently and I have no more leaks.
Taking of your splash guard is easy. Just a phillips screw driver will do (or maybe a hex socket.. I forget)