It's up to you. 3D Showcase is good if you're working on a 3d ui. 2D Showcase if it's 2d-related feedback you want. Animation Showcase if you want motion feedback. Digital Sketchbooks if you want to post sketches, etc. Just choose one though please, we're not fond of duplicate threads. See here for tips on how to get more…
forums are like multiplayer games, you don't really want everyone spread thinly over a thousand game modes and nobody meeting. im cool with it going into 2d or 3d showcase appropriately