Looking at the graph, you are going too hard out of the gate. Maybe 415 watts is too low, but your pacing strategy for the intervals should be to maintain an even power output for the duration. The first two intervals show a pretty steady downward trend, which is not what you are looking for.
The third and fourth look the best, as the effort remains roughly constant. On the next efforts, however, I noticed at the end that there are some spikes, indicating you maybe had trouble even keeping that power output steady in the last 30 seconds.
I'll try to get a graph of what my Tuesday 1 min and 30 second intervals looked like for comparison.