diy Reception Centerpieces Suggestions

I agree with Traci. It is very pretty, but maybe you could add something to kind of fill in the gaps between candles. One thing that comes to mind is putting them closer together and then adding a framed table number to each centerpiece. The other thing I noticed and maybe it's the effect you are going for, but the candles are giving it a very yellow tone. I personally don't like the color yellow so to me it's a little harsh, but it could be the vibe you are going for or it could just be the photo itself. If it's not the vibe or photo then I'd probably try to figure out how to tone down the yellow effect. Not sure how you would do that though.

I would wind some type of garland in between and as others have said, put them a bit closer together.

I would use mirrors as the base and let the light reflect. Skip the artificial flowers. You can get multiple frameless square mirrors in sets. I once worked with a venue that loaned them out with tealights.