The first three pictures look like Eugenia Florida to me.
Really ?
I had kept that in the back of my head, because
i had bought seeds last year for it (from someone here BTW)
and they never (LOL) germinated.
i re-use soil all the time
so, this makes sense... im sooo glad
although, i think the very first pic/plant
is different from pics/plants 2 and 3.
i have a couple more of the ones in photo 2 and 3
which now i think are E. Florida.
the vein structure appears different in plant-pic #1
and it seems to be growing faster than the others.
guess it could be natural variation