This gives a friendly character to text; love the 's'.

You seem to specialize into very low-res for good, cool!
{@Groszak: too, bravo! I'll finish commenting on your 'old' fonts…}


[+] Genuine US-ASCII(*): good job!
[+] 4 x-height (w/o descender): good legibility!
[+] 4-dot wide letters & numerics: balanced/legible monospace style/rule.
[+] Slightly oblique (even reversed).
[+] Several pairs: more logical (and legible eventually?).

[-] Too much weight in "!MWeg".
[-] Ambiguous "i" (~ "l").
[-] Slightly ambiguous pairs: "Jj (Oo) Pp Vv".
[-] Fanciful "s" (@nightpegasus).
[-] Not enough weight in "sz (&)" (+ some 'oblique' & punctuations?).

We can see you borrowed several 4x5 glyphs or designs…
(which makes a unique style, even improves your skill.)

Conclusion: Building a valid 4x5 font is one -simple- thing;
a more valuable one is keeping the choices in more matrices
(as a family, else there are thousands of antagonistic mappings).

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* I repeat the fontstructor flaw: 94 characters is quite enough…
 (extra quotes are not required for the US-ASCII compatibility).