I like the way the deck box matches the tone of the stone / tile patio . leave that. I see the cobalt on the pot and then the table itself becomes quite the issue. . . let's start with the table . . I'd like to see the legs painted out black to match the chairs and the base, but the round top itself wants a decorative treatment if you are going to paint it .. blue and gray and dark white . . a pattern like a vintage advertisement from the 30's . . .
black on the pink pot . . bring the black around, and perhaps a black full cushion for the storage box - you can put velcro "wrap straps" on it so it holds on when you open the top . . .

the side table that is sort of leggy . . that can be bright yellow . . something unexpected to punctuate. . the table with the glass . . white to echo the walls, and wash the chair with white to echo the deck box . .

off to find some table top inspiration . . .

Here are the right colors - idea http://www.google.com/imgres?imgurl=http%3A%2F%2F4.bp.blogspot.com%2F--euyO-svaTs%2FUUjUcJhI2NI%2FAAAAAAAABMg%2Fyjps3D_hOGY%2Fs1600%2Fsewing_table_redo.jpg&imgrefurl=http%3A%2F%2Fdearemmeline.blogspot.com%2F2013%2F03%2Fantique-sewing-table-redo-mod-podge.html&h=1066&w=1600&tbnid=AoNULbuFU-K_yM%3A&zoom=1&docid=5G4qmeMCtNSYIM&ei=KEHXU7HAOc7soAS4rYFI&tbm=isch&ved=0CFMQMygsMCw&iact=rc&uact=3&dur=2724&page=3&start=38&ndsp=22
but something more educational and perhaps easier to produce = a clock face! antique, why not? http://shizzle-design.com/2013/03/how-to-add-aging-dust-to-your-wax.html

The clock is a great idea for the round table. And I love colour of the blue you gave me. Thank you.

would you keep the colourful cushion? I love this patio

I moved the furniture around and had this as a result.

I want to buy second hand cane chair with blue cushion and add the colourful cushion on top. I will paint the round table as libradesigneye said but with the glass table, I'm not convinced to paint it in white + the 2 chairs

Or would this furniture placement be better?

Here is some update about my patio

Please help me decorate this patio in our rental home.I'm not happy with it. So I played with Corel paintshop. I haven't finish the clock on the table yet (work in progress). Then I tried some fabric to cover the chair. Does it work?