/r/ is too wide and (in the heavy) its arm is too light. /v/ is too wide I think. /K/'s arm may start too low on the stem. Round bowls of light figures are oddly more squarish than other bowls. Lots of work needed on setting better sidebearings. Once that's done other design assessments will be easier.
Last stroke of /M/m/n/ could dip below the baseline a bit so it doesn't look like it is riding high. The rounded bowls of /B/P/R/ don't seem to me to fit the style of the design, and similarly /S/s/ may be too smooth. /b/d/p/q/ are too wide. Serifs at top left of /E/F/ should be more substantial. I think the nearly monoline light weight loses a lot of what makes the design appealing.