The weekly chart on GBPMXN is at a critical stage. A fall below an important trend line (in general) does not necessarily mean trend change - it depends on so much more. Price could still re-test the trend line in coming weeks. I'm also looking carefully for an aggressive and or filtered entry on the William Vix Fix (WVF). Of course the WVF does not rule anything, it only indicates a probability. WVF signals are usually more reliable coming out of pullback in an uptrend. Chris Moody has more on this on Tradingview.
On the 4H time frame this is definitely a bear market - jaws of the Aroons are well apart.