For your first Mod, it's pretty solid: Consistent with a theme, looks like it could be used in the company's offices.

That being said, that "belong in the office" look is the biggest complaint: without the few "Umbrella Corp" items in its design, it looks like a PC you should expect in a boring, drab office. People modify their machines so that they don't look boring: While your machine plays well on the theme, a few extra things (such as believable fake tech or something more to tie back to the series) could take it to the next level.

If you do more, play on the theme a little more: there's a few things you can do to keep in the theme without making it look like junk.