ETA - oops sorry, I just read the last line of your post. Try searching for something specific, if you have a theme or something in mind. It narrows it down a lot.
I usually search on pinterest according to my theme/colors and find stuff I like, then hopefully it leads me right to the etsy shop or website I can buy it from. I think pinterest is easier to find things I like with their search option than trying to actually navigate through etsy.
I enjoy looking for ideas on Pinterest and then heading to the craft store and buying what I need to make it myself. Never anything elaborate but I find its fun to do and saves a ton of money. I especially did it when I was going through my hot and heavy nesting stage ( where did it go?)
I should have done more DIY stuff myself being an artist, but since moving i still haven't had time to set up my crafting area. .
I have an awesome collection of "big eye art" (Keen, Mao, Gig, etc.) in kitschy ornate frames that I thought Id hang, but I don't want to destroy the wallpaper.
I think with the popularity of gallery walls, you can create a nice motif with a mix of thrift store finds, sentimental pieces, and non picture wall hung items. I actually much prefer this to generic art and matchy-matchy crap.
I also like "adult art" (meaning not specifically baby intended... Art gallery worthy?) in nurserys. Very chic.
I haven't gotten my decals yet, but the shop owner was AWESOME and very attentive. I sent a pic of my Baby Girl's nursery and she super imposed the design I wanted on to it. We loved it. The decals ship from China (of course) so they take about 3 weeks to get here. The reviews are really good. Here's a pic of what the owner did for us!
Re: Wall Art
https://www.petitcollage.com/wall-decor
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BFP #1 May 20, 2013 MC June 27, 2013 BFP #2 August 2, 2013 Baby Boy born 4/25/14 (3 weeks overdue!)
April 14 August Siggy Challenge- "This time last year.."