Ok so to fit in with them you would want to get rid of the crazy background and replace it for a solid colour.
Also the folder won't fit... You have 2 circles and then some folder
😛
What about something to do with the globe as previously mentioned.
Also I think you may want to re do the text it looks very erm... Powerpoint-ish
😛 Nicely put.
You have the text the same colour as the background which is alright but they are in different places... make it more uniform as it is a set. What about making the image in the icon a bit smaller to make room for the text along the bottom of them both so its also not overlapping... You'd probs want to change the colour of the text too or it won;t be clear against the background colour. Or instead you could but an opaque layer of black behind the text.
Have a go... Just some critique there from an amateur
😛
Also, I don't know how old you are but I think looking at your blog everything needs to be simplified and less in your face.
Smaller texts, softer gradients (if any), cleaner and more natural colours and neaten things up align things etc...
Just the simpler the better really
🙂
Hope all goes well
Luke.
Edit: Do a quick search on google for inspiration
http://images.google.co.uk/images?hl=en&um=1&sa=1&q=globe+portfolio+icon&btnG=Search+Images&aq=f&oq=