Sorry, don't want to sound harsh, but... I think the first thing you should do is to re-evaluate your "strategy". You ask for a feedback about an item which is already put to sale. You should have asked before, if it was good, and especially good enough for selling.
On a larger view, I think you should try first to clear which potential clients you want to reach. I would say that there are roughly 4 different types of markets for content creators :
- Print-ready
- Game-ready (low poly, 2 to 4k textures)
- Production-ready (high poly, highly detailed textures at 8K to 16k)
- Hobbyists (like Poser, Vue...)
If you want to reach hobbyists, who usually like free content like you massively propose, then you are on the wrong selling place. You should try other sites oriented towards this kind of market (but be warned that creating content for Poser or Vue is very complicated and that hobbyists have huge expectations).
For print-ready, here is a good place, I guess, but I don't think you are modeling for this market yet.
For game-ready and production-ready, then you have to ask yourself, what a freelancer or a small studio would pay for ? Obviously, to spare time (e.g. money), because paying internally a model or texture artist to create a specific asset could cost hundreds of dollars, and a content place like CGTrader may offer something similar for less (at the expense of exclusivity).
And I'm sorry, but your models are far from matching the requirements any studio would have. Especially when you propose something like your axe and say in its description that it needed 10 hours to create without any tutorial. This is the kind of comments you should post on a community forum (blender or renderosity or any other aimed at beginners and hobbyists), to get proper feedback and tips to enhance your skills, but certainly not as a description of a priced product. A freelancer or a small studio wouldn't pay for something that wouldn't cost them more than 30 minutes of work. In other words, they wouldn't pay for what you propose.
Don't get me wrong : there is nothing bad in learning with selling as a scope. I have spent years learning Lightwave, 3D-Coat and Substance suite before getting some relevant sales. Litterally.
For the moment you should refine your skills instead of trying to sell each piece of modeling you just made. Because you are too much in a hurry, and you should tackle first things first.
As a side note, since the quality of your models has increased these last months, I would also advise you to get rid of all the shaded utah teapots and other hundreds of irrelevant assets you have on your store, just to keep the very best of them.
And finally, when you explain that you sell a model for buying a graphic tablet in order to get better, you should keep in mind that the tool doesn't make the artist. A graphic tablet won't get you better : it will only help your workflow. You should first concentrate of mastering your current tools, and then - and only then - expand your toolset.