Your chart is interesting because it's suggesting a short term upward trend. I got the same result by studying the RSI indicator. Most other charts suggest immediate down turn, which seems to be too simplistic. Also, your chart seems to suggest that the final bottom is already in for Brent. I tend to think so too. For WTI though, there could be a final bottom within a month.
For WTI, the most likely scenario is illustrated by YaKa's chart:
You are right saying that I think the final bottom is already in for Brent. Now it turned to growth, imho, with new 12345 wave-cycle. And as I thought Brent is trying to write 3rd mini-wave. But now I am watching at too deep correction and thinking about what I did wrong... Will see soon :)