i'll begin by saying that you have great flora growth- that driftwood looks great.
Some height is always good. Contrast between height and low-levels is better.
Rule of thumb - keep open same/low level plants for tanks that are longer than they are taller. Too much height and its not aesthetically pleasing. Conversely, tanks that are taller than longer need height to avoid the bare water column look.
You actually do have plenty of height with the ambulia and the nice piece of driftwood. Problem is that its not used as effectively as it could.
Your plant selection is promising but the way your original setup is not as pleasing to the eye..it goes from low to high to low again.
What i recommend is moving the ambulia to the left corner and planting it densely there - like an ambulia forest - plant it like a pie piece in the corner- it'll make a nice 3d affect giving your tank a deeper profile. Make sure it is behind the driftwood though. It looks like the driftwood its positioned so that its going into the left back corner and jutting out from there...basically looks like its positioned like this backslash - \ (birds eye view of your tank)- i would reposition that so its either facing like this / -forward slash- or simply horizontal.
I would then take a few of the tall deep red plants and plant that directly infront of the ambulia- following the outer pie configuration of the amublia, but also behind the driftwood. This will add color to that side of the tank since your driftwood is covered in rich green flora and the ambulia is also bright green. But because the ambulia is taller than the red plant, it'll look great.
I would then plant the baby tears on the substarte below the driftwood (if not an entire carpet of it). This will give a natural effect of the tears taking over the driftwood rather than being strategically placed by a human

a carpet in front of the driftwood of baby tears would look awesome.
Keep the right side of the tank shorter (in terms of flora height). I would grow the grass out in the middle (keeping a nice column of open water). For the right side keep the anubias and tiger lilly there while maintaining the grass carpet on that side. This will end up with the anubias and tiger lilly popping out of the grass on the right side. This will keep a very nice open space for your fish to swim (which looks great).
I think this would make your tank look amazing!
I think that even though nature isn't exactly orderly, there is a flow to valleys and troughs and peaks.