Most of Hypocrea species requires microscopy for identification. But young H. aureoviridis looks like a possibility. I found something similar last winter.
Yes, AFAIK anamorphs of Tricholoma/Hypocrea looks all basically the same. Here I should have three different Trichoderma species, first possibly Trichoderma sulphureum by growing on Exidia sp., remaining two have teleomorph present.
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Similar to this: http://www.mycofiel.nl/detail/hypocrea%20aureoviridis.html
That orange one you showed is really nice. There is also a small red shiny ball above it.
But I didn’t realize that my tree confetti could be a teleomorph of that same group.