Looking at cumulative graphs like that is misleading. It's also impossible to conclude anything about peaking in the UK from the total figures, as the baseline for testing has been changing as the number of tests has increased rapidly in the last few weeks. Fortunately there is one dataset that has remained constant throughout. In the government's daily releases https://www.gov.uk/guidance/coronavirus-covid-19-information... there are "pillar 1" statistics. This number is the hospital admissions that test positive, and it's the only data set that has been gathered in a consistent way throughout. The pillar 1 stats peaked at 5903 new cases on April 5th. Yesterdays pillar 1 new cases were 1277, so the UK cases indeed have peaked and have declined significantly since the peak. They're being a bit stubborn at decreasing below 1000 per day though.
