If you like the first pic, then you just need to grow it in harder water. I grew it just like that(kh4, gh8). It is deficient looking in my eyes. However, when I put it in soft water(kh2, gh2), it is much happier and grows like A. gracilis, but with thinner stem/smaller leaves, deep pink on new growth. You WON'T be able to tell the difference between the two from any picture, but easy to tell in person with size comparisons. I have grown both for quite some time.
Flourite, wet/dry, AHSupply 302w PC, PinPoint controller
15w T6+15w T8
40w T6 ODNO4x, no CO2. Discus grow out.
10gallon Tonina tank, 2x15w T6 ODNO 4x
I will do aquascapes after I collect all the plant species and grow them to perfection.