Combined RLC circuit phasor diagram?
In the capacitor, current will lead the excitation voltage by 90 degrees and the inductor current (with zero resistance for R) will lag by 90 degrees. As R increases, the current thru the inductor reduces and the phase angle moves from -90deg eventually to 0deg when R = infinity.

As for the total current taken, sum up the individual currents and you have your answer. If you think someone is going to spend time drawing a phasor diagram where R, L, C and F are all variable, think again.