Lower-case "n", "m" and "i" letters are all built from the same basic stroke here, and lend themselves very nicely for inversions. To make it look right, you only need to play with the length of the serifs on top and bottom. (It can be tricky to do by hand, but is slightly easier to balance it correctly with a computer.)
I found it surprising here to discover that this middle "e" works even when the upper part is theoretically missing a tiny piece.
With the tricks used to invert "Annemie", you can also write "Anne".
More of my ambigrams are here.