I'm having a presentation at a conference and need help to choose outfits i'll need to make a few posts due to internet problems

#1 & #2 are options for presentation. Are the bright blazer too bright? I want people to listen to what i say, not being blended by bright colours. Is it better to go with black blazer?
#3 casual version for casual dinner. Ok or needs tweaking?

ETA:
Dinner outfit: http://youlookfab.com/welookfa.....casualized
Casual outfits: http://youlookfab.com/welookfa.....ule-casual
Another casual and a packing list: http://youlookfab.com/welookfa.....her-casual

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