ESP8266 not responding with CP2102
You're not giving a lot of details.
My first guess is you don't have the AT firmware loaded :)

But:


Which ESP module are you using?
Are you sure the AT firmware is (pre)loaded/flashed?
Does any blinking occur on anything when the module powers on? A ESP always sends some data over serial on bootup, and most CP2102 modules have leds for TX/RX, do they blink?
Did you actually install the CP2102 driver, does it show up as a COM port in windows?
I don't think it's an issue, but why is the 10k resistor there?
You could try without it, but I'd also like to know why for my own
projects (I normally don't use it) :)
I'm behind a proxy, so can't look it up, but make sure all the pins are
held high/low correctly, you seem to have everything on 3v3, isn't there
usually some that need to go to GND? Can't remember..
Like someone suggested already, CP2102 might not provide enough power, so
try a dedicated 3.3v power source. My personal experience is that it is
enough as long as WIFI stays off though.
Triple check all your wiring :)