HA HA HA HA. I laugh because my friend's mother made me a get a real bouquet after she heard I was going to use a fake one and I called a florist and I felt like I was talking to the adults in the Peanuts cartoons lol. I get it. I would talk to the florist and most have emails so you can send them the pics. However, they may have to work with what they have in season as well as your budget too because what I would really want would be too much money.
I would price out real vs fake. Depending on how real you would want artificial flowers to look they could actually end up costing you more. A florist should be able to tell you want flowers you would want based on any inspiration photos you would provide them. I am not a very crafty person so there is no way I was going to DIY my flowers, but if you are a crafty person then it shouldn't be a problem.
I know there are some Dahlias in there. I would show these to a florist and ask how much the would charge and ask for an itemized list including the flower name and price. Then you can compare with fake or bulk prices like fiftyflowers.
Safeway has some options that look like your theme colors for about $50-$100. Or you can buy their flowers for about $10/dozen and DIY a bouquet. Here are a couple of their already assembled bouquets. Hope this helped