Welcome to Level 15.

Spoiler:

Like we always do,check the page source.

The hint we got :

Title...What's wrong with this picture ?

This is the big hint.

If we check at page source the picture in txt format.

So what we need to do ?I think you already know what to do.

If you still stuck click spoiler :

Spoiler:

After you change txt to jpg you will see one picture with symbol.

Now find out what the symbol is that ?

If you said the symbol is zodiac you is totally wrong.

The symbol is computer language.

You need decoding the symbol.

You can decode the symbol easily at here :
http://dylan.whichard.com/wingdings.php

If you stuck click the spoiler :

Spoiler:

Now you already know what is the symbol is Base64 code.

So what we must do next ?

Remember about the txt file ?

Now we know the content in the txt file is Base64 code.

Decode it.

This is the hard part.You need the decoder that can decode the txt base64 into some image file.

Why ?

Because the base64 code in the txt is referring to some image.

The only best decoder for this sitation is :
http://toastedspam.com

Choose base 64 decoder and decode the code in txt file.

You will see the picture.

Still stuck ? Click the spoiler :

Spoiler:

Now you already got the answer.

I think you should know you must do next.

If you still stuck click spoiler :
[spoiler]Go to http://gamemastertips.com/cipher/monkey/wrench.htm[spoiler]

Aha !

At here i know you will stuck.

To go level 16 you will need the password.

But what is the password ?

If you put base64 that is totally wrong !

So what the password ?

Think again.
If the username is monkey so the password is ?

Use your logic thinking to get the password.

If you still stuck click spoiler :

Spoiler: