I tried to clean up the image at the risk of over-simplification:
For the word "destroy", I believe it is being spelled D-E-ST-R-O-Y. It does mean that the characters for ST and I are very similar. However it seems like I has a point like a pencil while ST has a point like a razor, but again it's hard to tell on this image.
I don't believe any letters in this are capitalized, or they all are, if there even is such a thing in this language. That is because characters for U ("uuould" and "you") and E ("evil" and "like") stay the same.
After doing this I noticed a pattern in some of the letters, and I tried to extrapolate some possible other characters (in red):
It doesn't work as well for the second set, but I think I'm on the right track as this does give us 24 possible characters, close to our own 26. They don't have a W in their language but they do have an ST so they might be missing other characters, or this chart is incomplete and they have over 26 total.
Bonus:
We can spell things like
Vasher* -
Siri -
Vivenna -
*There could be a character for SH
**Had to guess on the N Character