Cipher

I figured out three ELEMENTS except for the LEFT DOWN one——I can't see the last letter clearly Would you please tell me what the letter is... Not on the forums, I can't. If you want to send me a PM and tell me everything you figured out so far, I'll try to fill in the blank. Got the answer. Thanks ...

I figured out three ELEMENTS except for the LEFT DOWN one——I can't see the last letter clearly

Would you please tell me what the letter is...

HELP PLEASE!
I find the letters and I think I need a Logos Anagram & Crossword Solver for LINUX..