EURGBP is in a definite downtrend. It has entered a SELL zone, meaning the end of correction. Assuming GBPUSD got hit less than EURUSD it makes a good sense to SELL EURGBP.
However, keep in mind that this pair is highly sensitive to BREXIT deal news. That might be the reason for technical analysis not to work. So, you might consider TP earlier in case of any fear towards UK getting a bad deal or any such news from reliable news agency.