Two requests

こんにちは。
1/ I wrote this paragraph some time ago and showed it to nee-chan. She was a bit vague about there being some mistakes and even corrected some of them, but she's too busy to explain in detail. So, I would like to know what mistakes I made here, why they are so, and how I can reformulate them.
一昨日、この文節を書いていました。
「今日は、グレグです。二十一歳で、地球人です。
言語に興味がたくさん あります。日本語を一人で勉強しています, 本とサイトで..
日本文化も大好きで、日本で 年間 勉強していました オランダ人のお友達 が います。彼女から日本のものごと を たくさん聞きました。しかも 日本の神話と 日本史 を読むことが大好きなのです。」
多分、余暇があるなら日本語で手紙をあなたに書いていると思い ます。
2/ Also, someone from another forum showed me this picture. I can understand the words, but I don't know what they exactly refer to, nor why this pic is supposed to be funny.

おねがいします。

Well, the guy is stomping on the other's d*ck, so err, yeah.

Well, I can see that.. but that would make it a creepy joke at best..

When I was a kid, I and some other kids played a trick of "denki anma" (literally electric massage?) like that picture.

Hope my English is understandable.

Hirashin

hirashin said:

When I was a kid, I and some other kids played a trick of "denki anma" (literally electric massage?) like that picture.
Hope my English is understandable.
Hirashin

Click to expand...

Sure it is. Can you explain more? I'm very interested to know.
Thanks.

So, no mistake in that paragraph? Or is it so full of mistakes that it was rendered indecipherable?