I'm not entirely clear on what this entails. What kind of brainstorming are you looking for? Do you need someone to help you think through gameplay? Worldbuilding? Someone to critique with the art? The artwork that this person would be doing, what sort of stuff would it be, and how much work do you expect to need?

You're trying to post your image without first uploading it to the Internet, you're using an address that points to a folder on your computer. Please use a service such as Imgur to upload it first, and use its URL from there.

Please don't repeat content like that, you can just post your new stuff in the thread without making it a reply to someone specific. Forums aren't like Twitter, so even if you don't reply to someone, they can still see your post. Repeating content just makes the thread harder to understand. You can also quote multiple people in a post if you want (you can just copy the all quotes into a single post).

Have you been looking at any references? Version 2 looks more 3D (however, in version 1 we can see the tops of the posts, which is good! we should be able to see those on all posts), but still has the same construction problems as the original version, that fence doesn't look like it's made of planks/posts, it looks like a symbol of a fence rather than like a (stylised) fence. The texture also doesn't look wooden, it looks like it's painted with polka dots xP For now, don't worry about texture, just make it a flat colour and focus on making it look like a believable fence.

The characters are a bit hard to read against the background because the background has a pretty wide value range. Using a wide range of values as a stand-alone piece, but leads to clarity problems for pieces used as backgrounds, especially when the foreground (the characters) are mostly midtones.

Your scenery fades towards a dark colour the further away it goes, yet the sky is light. This causes the horizon to be the most high-contrast, attention-grabbing thing rather than anything in the foreground, and it looks a bit strange, since generally things fade towards the sky-colour in the distance.

It's looking good! I'm going to reiterate my critique about some of the shelf contents: they still feel too high-contrast, mostly because of the golden bits on the books.

Here's an edit where I changed the gold lines on the books to be the next lightest brown rather than the bright wood highlight colour, and I made some very simple colour tweaks towards purple:


I say "simple" despite the extensive change because I used Photoshop trickery to achieve it, and only hand-edited 4-ish of the colours.
1. Select all the shadows so that darkest colours are most selected and the lighter colours are less selected (i.e. not a binary selection). In PS, I used Select -> Select Range -> Shadows, but there are several ways to achieve this, and it can be done in other programs too.
2. Fill that selection with your desired shadow-shift colour on a new layer. In this case, that was purple. Set the layer to Hue or Color mode (whichever you prefer; I used Hue in this case). This makes all your shadows progressively purpler.
3. Set the opacity to taste, probably pretty low.
4. Repeat steps 1-3 for the highlights, using the opposing colour (I used yellow). The opacity might need to be different; I used a higher opacity for this one than for the purple.
After that, I manually tweaked the greys on the fireplace and the wastebasket/boiler (the latter two use the same colours), mostly since greys aren't affected much by Hue blending, which doesn't change saturation. I replaced the darkest greys with various purple-browns from the wood. I also tweaked one of the mid-browns on the wood because there was too sharp of a jump between warm brown and purple-brown, so I tweaked its hue to be a little more purple.