Right after planting things may not always look the way you expected on paper. The plants will go through some changes in the next few weeks as they adjust to the tank. Some may die off while others thrive. Don't be too tempted to remove an ailing plant; some shed most if not all leaves, especially crypts. I thought all of my Sagitteria chilensis died out and after pulling one out, I discovered new roots and new growth in the center of dead leaves. I trimmed off the dead growth and replanted it.
I'd move the sword from the front right corner to closer to the rear on the right side. Otherwise the crypto wendtii green will be hidden from view. If possible, move the driftwood to the right under the AC filter. Or to the left; you want to avoid direct center. Yes, corkscrew Vals would look nice in the left rear corner. Other plants you could try to fill the vertical spaces are bunch plants like anacharis, cabomba, and ambulia. They grow relatively fast toward the surface and you can simply cut and replant them.
