You got an interesting idea, but to put a random drawing and then expect the player to answer right is dumb since synonyms exist. From the first image I guessed I had to input the code based on the alphabet placement of each letter for the word "bunny". "Rabbit" also exists, but it had 1 too many letters.
Then below there's a picture of a sword, but "blade" is also a 5 letters word that could work. I think what's even weirder is that then there's a picture of a moon, I would think "moon" works we just leave the last number a 0, but then I remember "lunar" is also a word.
"Lunar" is not even that popular of a word, I'm pretty sure ppl would have thought of "moon" before "lunar" and I'm assuming lunar is the right word because it has 5 letters. After putting the password for 1 image I'm now stuck in this level and I have no idea how to get out.
I think those types of games are made unintentionally too cryptic because of quirks due to language. Synonyms are a real problem there.