One more review!
Writing
This is an intelligently written comic. To be frank, if you're ignorant -- you won't get it. Many of the jokes are based on scientific knowledge. The result is something that either lends itself to dry humour or a scientific pun, which means it will either work or it won't. Some comics include a stealth joke if you understand the theory behind the words followed with a more accessible joke.
This means that not every comic will produce a laugh, but if you like science, learning or trivia, then the author notes will be an enjoyable extra.
Artwork
Having had my comic reviewed, I know what it's like to be hit with criticisms on artwork when you're trying your best. I suggest two things: Very the thickness of the line work, and stylize the work more. Stylizing takes a long time, a lot of effort, but it's well worth it as it allows you to ignore realism for something pleasingly abstract. In other words, work less on realism... I think it will work better overall.
I can tell you this from experience -- when your linework looks good, when there's no shading or colour at all, and it still looks decent -- you've found your style. This is something that took years for me to find for Super Temps.
Originality
Very original. No gamers, catgirls, bishi, hot lesbians, Internet Humour or sprites to be seen. This is what the web should produce a little more often.
Style
Probably the weakest point, and unfortunately there's no advice other than "experiment". I'll do my best by examples of style:
Charby the Vampirate uses a manga style, but with better colours and shading and a distinctive cute-to-horror transformation. It's a hybrid of many things and a love of twisted, organic curves.
http://www.drunkduck.com/Anyone_but_Virginia]Anyone but Virginia has a somewhat manga-influence to it, but very organic and natrual, imperfect people. People who are allowed to have imperfect hair, bulges, lumps, and fleshiness than other comics (my own included) leave out... but manages to do so without being ugly.
The Unthinkable Hybrid is done very old-school cartoon. Very lively and simple but with good expression.
I think any artistic problems you're encountering will be best fixed by finding your style. Taking your response regarding your artwork -- you will find that the more you look at your choices as to why you are doing what you're doing, the easier it will be to address what you feel is a lack of skill.
Recommendation
Going to be a bit different. In a nutshell -- if you're smart, inquisitive, curious, scientific, and tired of more typical lowest common denominator, I can heartily recommend Gelotology to you. You will be overjoyed that there's something other than random stupidity available online.
If you LIKE the lowest common denominator... read something else as you won't find it.
One last thing -- it's not 'laziness' if you're trying to make a deadline. That's called 'I have to finish this NOW to make my deadline!!'. Keep that up, I find it's a great way to help ensure you improve by necessity!! :)