Love, love the colors!
It's fabulous. It really captures the spirit of "Laissex le bon temps rouler". (let the good times roll)
I always try to keep any seam allowance that's on the bottom pointed towards me, so that the feed dogs hold it in the direction I want it stitched. So if you have a seam with one allowance going each direction, the bottom one is towards you, the top one away -- because you have more control over how the top one behaves as it goes through. I will sometimes pin the top one but usually just go slowly and if necessary lift the presser foot slightly to straighten it just before it gets to the needle. An orange stick or similar "blunt pointed" item is helpful to do this too.