Party Decorator for home graduation party

We are looking for someone with experience setting up 1 main room with high school graduation decorations for the middle of May.

The room is 14x12 with high ceilings, not massive. We want a photo area, balloons, streamers etc. we can supply the decorations or are open to other options.

Most of the party planners I found online are for big events. This I just simple room decoration before the party.

Please send photos if you have done this before! Thank you in advance!