Although the forward was happy with the result, he claims the squad needs to step up another gear against Sweden and Ukraine, and added that Rooney's return will be a big boost.
England striker Danny Welbeck has called upon his Three Lions teammates to improve on their performance against France to make sure of progression from Group D.
Despite a satisfying result against Les Blues, the Manchester United front man is wary of the threats posed by Sweden and Ukraine after watching the game between the two.
The co-host currently tops the group after one round of matches, having beaten Erik Hamren’s side 2-1 thanks to a double from legendary striker Andriy Shevchenko.
“I think the France game, as a start for us, we set out our platform," Welback told reporters. "We really want to build on that from now on. I think we can improve a lot more.
"Looking at it from a neutral point of view it will be a fine game to watch. Once the game is opened up, there will be a few goalscoring opportunities carved out."
Welback also commented on the conditions in Poland and Ukraine, with a warmer climate possibly affecting the players, but the youngster reasoned that the later kickoff times for the final two group games, and the help of England's medical staff, should eradicate any problems.
"The heat is going to take something out of you," the 21-year-old said. "The second half [against France] was a bit cooler, and our second and third games are at a later time so that will be a bit better for us.
"We have a great medical team telling us to keep hydrated, drinking at all times and we've had good advice all the way throughout the tournament."
Wayne Rooney is set to make his return against the Ukraine after serving his suspension and Welbeck feels his teammate’s return will only be positive for the squad.
"He's itching to get out on the pitch. It will be better for us once his suspension is done and he can come in and play for us against Ukraine," he added.
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