Schriftbild Grotesk Lt Demo

In my opinion there are some inconsistencies but in general this is impressive work.

First, I must say my first impression was that /G, /R and /S are off but after looking at this for a while I think they're rather well designed quirks. The top of the S is quite wide and the back leans quite far back but it does look quite attractive. I do still have mixed feelings about /G though. The top terminal of /C and /G seems to slant down a bit which I accept as a nice quirk to this font, however I'm not so sure about the horizontal in /G sticking out. For some reason I would find it somewhat logical in a slab serif typeface but for a sans it seems a bit too decorative.

An issue I do have with this font is the inconsistency in widths. /P has a tiny bowl (I usually give /P a bigger bowl than /R so I can fill more of the white space underneath the bowl) but it works well in this font because the proportions of some letters suggest an oldstyle construction I think this is evident in the wide /M and /N for example but it makes me wonder why the /H is so condensed. I think /B could be a little wider and /A perhaps a bit more condensed. In any case, /U is definitely too condensed and /Z is definitely too wide.

Did you use guidelines for the lowercase letters? Perhaps it's an optical effect but I can't help but feel /c and /g are smaller than a/b/d. The bowl of /g looks particularly small actually. /h looks a bit too condensed and in fact looks more condensed than /n which I find odd because the proportions should be the same I think. /n could also be a little wider. /x should be wider and /z should be a bit more condensed. /s looks too small and I'm wondering if the ascender of /t shouldn't be a bit shorter.

Don't get discouraged by my criticism though. Schriftbild Grotesk is showing a lot of potential and with some fixes you have something really great. Are you also designing other weights?