Out for a ride

I'm doing several paintings using the color purple (the tree in my last post, this hot air balloon, and an extreme close up of an iris) and I am learning a lot about mixing this color.  It has been a great exercise so far.  I've also found out that if I photograph purple with a flash, the color shows up as blue.  haha.  The challenge in this one was the angle of the balloon/basket and also layering the silver.  I think it took three or more applications before you couldn't see the blue sky through the silver.  C&C welcome!  I should add that I had to crop the picture a bit on the right to straighten it-there is a bit of blue along the right side of the balloon.