Need fashion advice lol

My sister got me this to wear to my Sprinkle Shower but I have no idea what shoes to wear or what kinda jacket or something to cover my arms? The party will be outside. Not sure what will go with fuchsia & gold. If I can't figure it out then I'll have to get another dress 😩 These are just quick pics of trying it on. It's also pretty long in length. The back is longer and the front is at about the middle of my shin. Thanks in advance!