Attachments
The first one could be done by following 1D_Inc instructions and learning his techniques.
Ohhh yeah… there is no easy button in blender just so you know.
Second pic detail looks like a sculpt + retopo type problem. However you have to be fairly good to get an idea of what to do for edge-flow. I’d say to look over this guy’s video’s to get some idea: https://www.youtube.com/user/1DInciner/videos
—Edit—
Best videos I could find are the same guy in the thread posted above. Stuff’s quite involved.
for the legs you can start with the skin modifier
the second is more making some basic leaves and add some deform with may be bent modifier
but this is high res unless you do a low res and use some UV mapping !
or do it with sculpt
happy bl