Gasp, someone bought some K&L Products! ~.^ I highly recommend their berks (The NKP one blew my socks off!) or the PRR N-1 Mountain (Real work horse).
Those cliffs look pretty good the way they are. Only thing I could suggest would be to just pick ONE OR TWO SPOTS (This is easy to over-do, just pick at most a couple spots on the bigger cliffs) and break em up a little, either the same textures a different direction, or better yet some similarly colored Rock Textures (Cracks, or even a quartz or granite outcropping or some such, but the trick here is getting a color that doesn't contrast too hard). If you want to go nuts theres some Shale/Broken Rock Textures you can find that you can put some around the base. Finally put a Grazzy strip (Or similar shrub/grass of your choosing) across the top and you'll have some really gnarly natural lookin Rocky Outcroppings.
But to be honest, even if you left them as is, you did better then probably 50% of the cliffs I've seen on released DLS Routes just guessing on your own, so good on ya mate.
Falcus