This was my first attempt at decorating sugar cookies for an event. I know I need work still, but any advice on them?

I was having trouble getting icing all the way to the edge of the cookies without it running off a little, so some of them have more cookie showing than I wanted. Do you think I need to thicken up my flood more? I used 2 thickness of icing, one for outline and detail work and one to flood, should I have used a thicker one for detail work?

I want to start selling them for events so I’m going to keep practicing but they aren’t as professional as other ones I’ve seen, thoughts on how to price them?