OK, first test this morning. Location: Indoors. Light: Mostly from a large window, some ambient from over-head. 2.0 Aperture. These are SOOC (straight out of the camera); no processing. I made sure my subject filled the frame fairly equally in both shots -- though I prefer the 85 rendition, I'm encouraged by the results! The sharpness is close!
1. 35 2.0:
2. 85 1.8
Oh, and oddly enough, the one "downer" I've heard about the 35 is that the bokeh is pentangle in shape (like the 50 1.8), so not as "pretty" as other lenses, but I don't see that on my samples -- the (light) bokeh is really nice!
#1 is more underexposed than #2. Did you have the camera on something other than manual?
The color temperature is also different between the two did you have that on auto?
When I correct those two problems they look pretty similar other than the perspective distortion in #1 due to being too close with a wide angle lens.