Nifty : Macd observations in diverse Time Frame

My simple understanding is that the short term EMA_5 becomes greater than the long term EMA_34 resulting in a positive value for MACD heralding bullish time.

Nifty TF 34 DaysCycle with Macd, with declining value hinting of a cross down of the zero line sooner or later. As such my long term view is bearish.

In marked contrast, Nifty TF 8 DaysCycle, after a drop down of ZL, has crossed over ZL, showing an intermediate bullish phase.  

Above is a merged views of  the Macd's , derived from five diverse time frame, but shown in a single chart over a period of 13/12/2010 to 06/06/2016. In order to have a better perspective of the situations, I had used different filter to my Data Excel, results are following charts : 

Macd of TF 5 DaysCycle (on left hand side)  & of all TF's (on RHS)

Macd of TF 8 DaysCycle (on left hand side)  & of all TF's (on RHS)

Macd of TF 13 DaysCycle (on left hand side)  & of all TF's (on RHS)

Macd of TF 21 DaysCycle (on left hand side)  & of all TF's (on RHS)

Macd of TF 34 DaysCycle (on left hand side)  & of all TF's (on RHS)