GBPUSD remains in downtrend from 1.7190 (Jul 15 high), the rise from 1.6051 could be treated as consolidation of the downtrend. Key resistance is located at the downward trend line on 4-hour chart, as long as the trend line resistance holds, the downtrend could be expected to resume, and next target would be at 1.5800 area. Only a clear break above the trend line resistance could signal completion of the downtrend.