Hi, is it possible you have the time to approach this like a project?
Once you've examined your setting as a whole and what its layout looks like can you see how creativity happens in it. Eg. where do children invent, design, create, build, cook, make music, dress up, play imaginatively, put together in their own way, plan independantly in their play/what to do next, notice where adult intervention influences play, if this is beneficial or interupts children's focus, where group play happens, solitary play happens and how those places support creativity - through social interactions, space to face, talk, be alongside, communicate, and through resources eg.
'loose parts
Maybe you can look at these areas separately and identify one or more that you'd like to implement or see changes made to it - sand, water, dough, paint, role play, music, food, construction, art, physical play, movement, dance and how books children look and feel their way through support and promote creativity.
Why do you feel that area needs to be changed?
How 'enabling' would you consider the area to be and how 'enabling' do the children think it is ie. can they do what they want, bring things to it and take things away, when want, how they want? - is it overused ie. really popular, busy and crowded or underused, children show little interest in what's currently offered.
What resources are in that area and how are new ones introduced.
Do well used items remain constantly available or are they on a rotation system.
Can children request, see or retrieve items independantly.
Maybe see how the environment supports creative fine motor activities and creative gross and loco motor activities.
This thread may help further
http://www.silkysteps.com/forum/showthread.php?t=16055
Hth, best wishes xx