I painted antother Realistic Pokemon. I have several to-do-lists (most of them are 2 years old but whatever), and Meganium has been in one of them.
Program: GIMP

You can watch the playback on YouTube - link
And see the process on my Tumblr - link

Similar work:
Realistic Chikorita by Twarda8Realistic Cyndaquil by Twarda8Realistic Totodile by Twarda8