Xyq, it seems that you did not read my descriptions of the parts and that you know almost nothing about simple electronic circuits. Don't you have a teacher and a text book?
1) Is a resistor that powers
the junction field effect transistor inside the electret mic and a capacitor that couples the microphone signal to Q1 and blocks the DC differences. A resistor and capacitor are not an oscillator and their values are for audio frequencies, not for the very high carrier frequency. Q2 and the parts with it is the carrier oscillator.
2) Is the microphone preamplifier, not a buffer amplifier.
3) Is a resistor to provide base current for Q2 and a filter capacitor, not a reactance modulator.
4) Is a simple LC tuned circuit, not a frequency multiplier. A frequency multiplier would be an entire complicated circuit or IC. A frequency multiplier is not needed in this simple circuit because Q2 oscillated at the required frequency.
5) Is the low power, radio frequency oscillator, not a power amplifier.
I said that the circuit needs a
supply bypass capacitor which is parallel with the battery. You added it parallel to the emitter resistor of Q1 which would increase its audio gain so high that the audio would be extremely distorted.