Yudi - I like your overall theme with "PIC" being the focal point, but I don't get any message from the emblem... I'm looking for more of an aerospace/plane/agriculture feel... the coloring sequence (ROYGBIV) is a very important nuance in our industry, so any incorporation of those colors needs to be properly sequenced...
#11 - is very nice and clean, but can you make the font more dynamic...?
#12 is my second favorite of yours - I like the spatial construction of the emblem and wording...
#31 - I like dimensional highlight on the leaves! Can you make the font a bit more dynamic - italicized...? And is there anyway to make all the leaves green - except one of them, which would be ROYGBIV colored...?