Since you have shared that the concrete floor is a bit rough, you may wish to check into painting the concrete with the texturized paint sold at your local hardware stores for damaged decking. It works on concrete as well. There is also the colorful tiles that can be placed in an interlocking pattern to consider.
I agree with @Kimberly Barney in regards to using a textured paint. OR you can paint and texture it by DIY, OR you can paint then stencil to camouflage the 'rough' areas. OR you can rent a concrete grinder and smooth out the floor to get a very cool polish.
thanks to u both. I'll put a pic soon....