Toddler Dress with Peter Pan Collar

The sewing-baby-clothes bug has really gotten me. I decided to make a toddler dress out of fabric in my stash with a Peter Pan collar. I was always nervous about collars and zippers, and especially both in the same pattern. On a child's scale, however, they aren't so intimidating, and so I'm willing to try new techniques. 

I also used a serger for the majority of the sewing so that the edges won't fray in the wash. It is amazing how well a serger can churn over all the gathers and layers without a glitch where my sewing machine would have made a fuss. 

I found a free sewing tutorial and pattern on Small Dream Factory for a toddler's dress with the Peter Pan collar (http://smalldreamfactory.blogspot.com/2012/09/toddler-dress-with-peter-pan-collar.html).

I wanted the dress to have a gathered skirt instead of just an A-line, so I mimicked this dress (http://vanillaandlace.storenvy.com/products/442850-mini-lucy-p).

I used a contrasting, pale pink bias tape to finish the armholes and still have to attach the collar. I'm still uncertain whether I want the green collar or if I need to go find a solid green or purple to make it more cohesive. I'm planning to tie the collar color together by having a small edging on the skirt in the same fabric as the collar. Should I stick with the pale green and white floral collar that I have now or should I hunt for a solid? Thank you!

Happy Crafting!