Thank you for all your comments on the new look. I've taken in all your advice and ideas on board and I think I'm going to stick with these graphics.
I've also been designing levels, and I've got three done so far: Totem Recall, Trees A Crowd and the new themed one: Plain Sailing.
This new theme is based on Pirates. Yarr! Lol
'Ere are some pics.
I think this level is rather hard, so it might be moved to the second world. (Not sure yet, I'm gunna ask my girlfriend to beta test the levels when she comes down next.)
Secondly I've added a new type of level gem to require: Time Attack Challenge. Once you've completed the stage, a clock shall appear at the start, touch it to start the timer. The timer starts at 60 seconds and ticks down. Collecting time boxes adds seconds onto the clock. Once it hits zero the gem at the end of the level gets destroyed. (Therefore requires you to start the challenge again)
Finally, I've added a bonus section which includes the remainder of the gems. (Jump on a green box at the end to get teleported there.) However if you die, you'll won't be able to get back to the area. This adds some more difficulty to collecting all the gems.