Hey Bill,

I'm also questioning it because plenty of companies know how to put plants in the ground but don't really know their plants.

OR whoever designed the bed forgot or did not know there was a window there.
That clearly looks like a type of evergreen Southern Magnolia. Let me tell you, I planted a 'Little Gem' (supposedly small) southern magnolia 25 years ago, and it is at least 25 feet tall now and hangs over my sidewalk and is a bad choice for my front yard.
Keep that until after the wedding. Move or remove it then. Southern Magnolia is a gorgeous but big type of tree, best way away from the house as an accent and where it can keep all its branches down to the ground for a natural rounded pyramidal shape.
.
Besides the actual tree choice, I cannot stand things planted smack in front of the window. Do you want your view blocked? And there is no need to set yourself up for constant pruning.
Everything else looks good, on the right end of our view is a Crepe Myrtle and I think its fine- depending on variety. Around here, the most common recently planted ones I see are white ones that are very spreading, and red ones that are quite upright. You want upright, .. and there are many cultivars of Crepe myrtle. Is there a tag? Or a name on a receipt, to tell you what that one is?